The online magazine for cactus and succulent enthusiasts Issue 18 September 2018

This issue includes:

Adenia Part 2
types, shapes and forms
by Nick Gash

Czeching it out
two leading Czech nurseries
by Ian Woolnough

Adenia stylosa, Ankarana

Editorial names and I must admit I am none I repotted the Coryphantha at the
the wiser. start of the growing season,
It’s well-known that growing cacti something that was long-overdue.
takes patience. Of course there are Coryphanthas are slow-growing
It must have breathed a sigh of
some precocious species that plants and it is generally
relief as it stretched its roots in its
show off their flowers at an early considered that many of them will
smart new 3.5inch pot.
age, but many cacti are a lot more not flower until they are around
sedate in their approach to eight–ten years old. Mine must be Or was it just that it had finally
flowering. older than that, since it was a reached the right age for this
reasonable size when I acquired it particular plant to flower?
So I was delighted when one of my back in 2010.
coryphanthas decided to flower for I guess I will never really know, but
the first time this year. I bought it in So what factors prompted it to I will certainly be interested to see
2010, from a garden centre, produce its first flower this year? if it flowers again next year.
labelled C. palmeri, which is now, Well one obvious contender is the
according to the ‘New Cactus UK’s summer heatwave,
Lexicon’, C. compacta. Kathy which was officially
Flanagan, in her article on declared on 22 June and
Coryphantha in the ‘Essex stretched through July
Succulent Review’, September and the beginning of
2017, remarked that C. palmeri can August. Although
be “associated with two different temperatures were hot,
species C. compacta and the plants were largely
C. delicata”. I have peered intently shrouded in shading for
at pictures of plants under all three most of that time.
During the hot weather I
acquired two large fans
which meant the
conservatory (where the
The Essex Succulent Review is
plants are grown) had considerably And finally, after all that waiting,
published quarterly in March,
more air-movement than has been here’s a not particularly good
June, September and December.
the case previously. picture!
It is available on-line free of
charge. Visit the website
www.essexsucculentreview.org.uk
to subscribe to the mailing list or
email: Sheila Cude
Past issues are archived on the
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© The Essex Succulent Review
may be freely distributed while the
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remains with the writers and
photographers. Permission is
required for any use other than
reading, printing for your own
use or storage.
Editor Sheila Cude
Address 25 Macleod Road
London N21 1SW
Phone 020 8340 1928
Email Sheila Cude

The British Cactus and

Succulent Society (BCSS) is
the National Society for growers
of cacti and succulents in the
UK. Zone 15 covers Essex and For more details see BCSS events or
north-east London. email Dave Appleton
2
Czech–Mate?
A proposed trip to the Pragu
e
Czech Republic
by James Gold

Avid readers of this journal will know that I organise an

annual Continental Cactus Crawl. It is usually a group Brno
of approximately 30 Crawlers, and takes place over a
four-day period. This year we visited 13 nurseries
across The Netherlands, Belgium, Germany and, for
Straw
the first time, France. For those interested, a wry and
amusing summary of each Crawl is penned each year Man
by John Watmough and published in the Essex
Duration – (Eight Days)
Succulent Review.
It is a full two days
I ‘inherited’ the Cactus Crawl from John and Joyce on the coach to
Jackson, who originally created the Crawl back in Prague and
1999. In an attempt to make the Crawl ‘my own’, I hence two
have tried to reinvigorate it and keep it relevant to the days back. A
needs of Crawlers, by changing the parking/pick-up day or two in
arrangement, hotels and most importantly adding six
Prague, a day
new nurseries to the list. It is sad to note that John
to/around Brno
passed away in July. However, I am proud to carry on
what he and Joyce started. and one day in an
adjacent region.
Perhaps the next logical step is to look beyond the The first day might
traditional European countries which we normally visit be a long trip from the UK to Stuttgart with a visit to,
and look east to the Czech Republic. There are say, Uhligs.
certainly great things happening there in the cactus
and succulent world. A lot of good Czech growers Timing – May/June
attend the BCSS National Show, the annual Haworthia As the growing season is behind ours.
Society Convention and, of course, ELK in Belgium. I Nurseries I have emailed and called many nurseries
have even met them at the French National which is with many not responding at all. The nurseries I did
almost exclusively French. To that end, I circulated this correspond with varied enormously. Quite a lot were
years’ Crawlers with a ‘straw man’ (see right) and 12 hobbyists who could not deal with a coach load of
Crawlers came back with positive responses. people and had very little stock. I list below nurseries
Overall the trip will be quite different to the current from which I had a response:
Cactus Crawl. Four, probably more like five, long days Otaker Potyka
will be spent sitting on the coach. In addition, there will Pavel Karkoska
be shorter journeys on all other days. At this point and Petra Pavelka (Prague) – very promising
before I do any more work on this, the question in my Rudi – nr Brno
mind is, how many people are interested in paying Hajak
£800 for an eight-day trip to nurseries that are all Dubens
unvisited? How many people would sit on a coach for Jasana
+ 5 days? Is it a cost-effective way to buy plants? Kakteen Ph Flora·
Jareslav Snicer
Having had a very positive response from 12 Crawlers
I would very much like to know if other enthusiasts Cost – (£700–£800)
would be interested in such a trip. Even better, would Likely to be twice the Crawl price, for obvious reasons.
be feedback and information from those who have
experience of the nurseries in this part of the world. I If you are interested or can help with any
have already had support from a number of people but, information, I would be most grateful.
in particular, I must thank Ian Woolnough for all his James Gold
help. He has also written an article on two of the larger Mobile: 07765 131883
Czech nurseries (see page 4 of this issue). Email: James Gold

3
 Czeching it out
Visiting two leading Czech nurseries
by Ian Woolnough

Fig. 1 The roof-top greenhouse above the garage was

crammed with choice and rare grafted goodies

Growing cacti and succulents in the Czech Republic, as

it is now known, is a popular hobby. Having seen talks
and heard tell of the incredible plants, what fantastic
growers they are and the great hospitality offered I was
keen to see all this at first-hand.

Fig. 2 Trays of grafted plants including some of the yellow M. luethyi

4
Czeching it out continued

Above: Fig. 3 A tray of cristate pediocacti on cold hardy stock

Above right: Fig. 4 By gouging out the growing points of grafted plants a large
number of offsets can be grown very quickly enabling significant numbers of grafted
plants to be produced in a short period of time

During the last few years I had met Czechs

at ELK, the European convention held in
Blankenberge, Belgium during early
September, and marvelled at the range of
rarely-seen, well-grown, choice plants they
sold. In the early years especially, they
were very competitively priced, (although of
late they seem to have realised that they
were perhaps too cheap and their prices
have increased quite a lot as a result).
On a number of occasions I had popped
across the channel to visit collections and
wholesale nurseries open to the public in
Holland and Belgium and decided that
extending one of these trips further east, to
include Germany and the Czech Republic,
was required. So, back in 2012, I made my Fig. 5 Some amazing Astrophytum forms

Fig. 6 A tray of Gymnocalycium spegazzinii forms all with different habitat locations from where their seed was collected
5
Czeching it out continued

Fig. 7 Otaker Potaka first visit, with some companions, based in ending up giving change from £12, if
senior centre left, in Brno. On the way to and from the Czech memory serves, and the food was excellent
the central Republic we stopped at nurseries in (the beer was not bad either!).
greenhouse area Germany, but I found their prices far too
conversing with Mike Anyway on to the plants and growers. I
high, (it is overall a very expensive country),
Harvey of Norwich would break down the growers I know of
and hardly bought anything from there,
Branch through our into two groups; a number of larger, more
student interpreter something I was grateful for once I had
commercial growers and then hobbyists
seen what else was on offer during the trip.
who tend to specialise and sell plants
The Czech Republic in contrast is a very through co-operative type arrangements.
reasonably priced country and our Although we visited some of the smaller
excellent ‘pension’ – a bed and breakfast – hobbyist type growers, and saw their wares
was great value for money. A meal and for sale at a display and sales weekend at
drinks at a nearby bar for four people also a garden centre in Brno, I am not going to
concentrate on them here. Suffice it to say
that there are some fantastic growers, and
some incredible plants were bought for
stupidly low prices, including rarely seen
pediocacti on their own roots for around £1
and Gymnocalycium seedlings filling their
film canister pots at 15p a time!
Instead we will first travel to Otaker
Potaka’s nursery in Orlova, in the far east
of the country, near the Polish border. I
knew this was a big nursery with a lot of
choice, rare, new, interesting often grafted
plants. Although many Czechs speak good
English neither Otaker nor his son of the
same name, whom I had met at ELK, speak
any, (and my sign language used to order
beer and food was not up to the job), so
another of my Czech friends had kindly
arranged for a student to meet up with us
there and translate. Parking outside
Fig. 8 The other roof greenhouse, above the office, contained larger Otaker’s ‘garage’ I was first struck by the
succulents and lots of Ariocarpus greenhouse on the roof (Fig. 1). On entering

6
Czeching it out continued

I saw Otaker senior at work grafting a tray location painstakingly recorded on the label Fig. 9 This view
of yellow-bodied Mammillaria luethyi (Fig. 6) and some incredible big across Prague, from
the iconic castle,
cuttings (Fig. 2). Back then the normal Tephrocactus geometricus and
shows some of the
M. luethyi was quite a rarity so to see a Tephrocactus articulatus plants, although many bridges and
yellow-bodied form, reminiscent of the perhaps too many than is really healthy! typical architecture
Chamaecereus silvestrii grafts on offer in There were benches of Lophophora,
some Dutch nurseries, was a portent of Frailea, Thelocactus, Mammillaria,
things to come! Turbinicarpus, Sclerocactus, Echinocereus
and Ferocactus to name but a few and a
Up in the roof greenhouse there was a
myriad of ice cream and Chinese takeaway
cornucopia of goodies including many
trays crammed with seedlings.
cristates such as pediocacti
(Fig. 3), a myriad of Astrophytum forms, A central greenhouse area (Fig. 7) had Fig 10 Some of the
a particular weakness of mine (Fig. 5), larger potted-up plants including some many caudiciform
newly-discovered things, variegates etc as massive Pachypodium, Echinocactus plants on offer at
well as some more ‘common’ plants. I was grusonii forms and taller cereoids. Another Petr Pavelka’s
particularly struck by the way that growing treat was a further roof-top greenhouse nursery in Prague
points had been gouged out to
promote offsetting from areoles
enabling many plants to be
produced very quickly (Fig. 4).
The Czechs do a lot of grafting
as this is the quickest and
easiest way to propagate the
new, rare, strange or difficult
things they seem to specialise
in. Not quite everything was for
sale but enough to keep us
happy!
Then back down to see the main
greenhouses of which there
were a number. I particularly
remember benches of
Gymnocalycium, something I
delighted on seeing in habitat,
but here with every conceivable
7
Czeching it out continued

Fig. 11 A general area above the office (Fig. 8). Quite a few difficult to find succulents from Africa in
view of part of the large succulents up here as well as a load particular. During our visit he was busy
greenhouse with the of large Ariocarpus plants, notable in many unpacking crates of plants recently
other succulents
cases for their massive roots which had delivered (Fig. 12) and had just had a visit
dominating
split their pots! All in all a nursery well from an official to confirm that all of the
worth the drive across the Czech Republic paperwork was in order, which of course it
to visit. was. There were a few nice cacti here as
well including seed raised copiapoas, not
The other nursery I am going to cover was
for sale, from a trip Petr made to Chile a
visited in the spring of 2017. This is Petr
few years ago, but his nursery is really a
Pavelka’s in a suburb of the capital city
mecca for those interested in Euphorbia,
Prague. Prague is a beautiful city (Fig. 9),
Aloe, Haworthia, Pachypodium, Lithops
well worth a visit anyway, so being able to
etc. Petr told me that he was getting on
spend some time there and visit a nursery
well with building another large greenhouse
as well was great. Finding the nursery was
on a nearby site so I expect that when you
a little tricky as from the road there are no
are reading this he will have even more to
signs of greenhouses. However once one
offer. His range of sale plants is perhaps
plucks up the courage to try the correct
second to none but thankfully I do not
Fig. 12 Underneath buzzer and the gates are opened all
grow what he had, so was able to come
the staging, as well becomes apparent.
away without spending my children’s
as a tray of
haworthias, there
Petr has mostly the ‘other’ succulents for inheritance, which otherwise would have
were boxes of sale (Figs. 10 and 11), having taken over been very easy to do.
recently imported the mantle from Ernst Specks who
tubers imported a lot of caudiciforms and more There are many more great nurseries and
collections in the Czech Republic which I
have not (yet) visited. However, assuming
that these two nurseries are among those
on the itinerary for James Gold’s proposed
Czech cactus nursery crawl, I would
thoroughly recommend participation. I
would warn, however, that a large coach
and sufficient Czech koruna, (the currency
is not euros although they might well be
accepted) in order to adequately transport
and pay for the plants one is likely to
encounter, will be needed. n
Photos: Ian Woolnough

8
 Fig. 1 Adenia stylosa, Ankarana, Madagascar

Adenia
Part 2 – types, shapes and forms
by Nick Gash

Forpossesses
a genus of c.100 species Adenia
a large range of caudex
types and growth habits, surpassed in
succulent plants only by the much larger
genera Euphorbia and Senecio.
Leaves vary greatly between species,
and indeed occasionally within a
species, so leaf shape is not a reliable
diagnostic feature. They can be big,
small, entire, dissected, lobed etc or
sometimes entire and lobed on the same
plant. They often have whitish patches,
these normally being in the centre of the
leaf along the leaf veins.
One thing they all have in common is the
leaf glands situated in various positions
at the junction of the leaf stalk and the
leaf blade. These can number one or two
(or rarely more) and the genus is named
for them, the Greek word for gland being
adenas. They secrete clear sticky liquid,
the purpose of which I am not sure of,
but presumably something to do with
attracting insects. As some adenias are
reputedly poisonous I have resisted the Fig. 2 Adenia stylosa, Montagne des Francais, Madagascar
9
Adenia – types, shapes and forms continued

Fig. 4 Basal leaf glands of Adenia sp. nova Ghazi on the peltate area
of the underside of the leaf

urge to taste any habitat. A. ballyi (Fig. 6) has shorter

yet to see how branches with bigger leaves than
sweet it is. They A. globosa. The warty caudex of A. globosa
are important can be huge in habitat, up to 2.5m wide,
Fig. 3 Basal leaf taxonomically as many adenias can vary in the smoother caudex of A. ballyi is smaller,
glands of Adenia leaf shape and stem structure within the up to 1m wide.
lanceolata subsp. same species but the type, number and
Unfortunately seed of A. globosa is very
scheffleri at the apex position of the glands is constant (Figs. 3
of the petiole difficult to germinate, I got one seedling out
and 4).
of 40 seeds sown and this, from reports on
Round caudex with perennial stems the internet, was a good result. After six
These include Adenia globosa and Adenia months the seedling resembles a 2ft (60cm)
ballyi. A. globosa (Fig. 5) has long branches long mature branch with the lower six
3ft (approx 90cm) long on my largest plant inches (15cm) being devoid of spines
Fig. 5 Adenia globosa and up to 8m long on mature plants in (see illustration in ‘Adenia Part 1’).
I presume that this is where the caudex will
hopefully form.
A. ballyi is also difficult from seed but less
so. Seedlings are available from Californian
growers at pretty hefty prices but they are
being offered more frequently and prices
will probably drop. I have two four-year
olds and I am tempted to sell one while I
can still get a decent price for it. If you
want an A. globosa your choices are pretty
much a rooted cutting or a habitat
collected plant. There is a subspecies
A. globosa subsp. pseudoglobosa with a
less warty stem.
Tuber with short trailing stem
These are nice plants somewhat
reminiscent of Raphionacme in habit but
for me much nicer. A. ovata (Fig. 7) is one
of my favourite adenias. A short trailing
stem with half a dozen large, bold, grey-
green leathery leaves arises from a squat
corky caudex. The description in de Wilde
does not give a size for the caudex but
mine is 10cm across. A. goetzii is another
nice tuberous plant with longer trailing
stems and smaller greener leaves. It seems
10
Adenia – types, shapes and forms continued

to have an annoying habit of having the

growing point die back in winter. This is not
fatal but spoils the appearance of the plant
a little. Under my growing conditions (a
south facing window) these are late
summer/autumn growers, breaking
dormancy in July. Another species
sometimes offered is Adenia sp. ‘Narrow
leaf’, (Fig. 8) a nice enough plant that
flowers well for me, a rare occurrence for
adenias in my care.
Tuber with climbing stem
Probably my least favourite adenias, these
include the well known A. kirkii,
A. stenodactyla and A. lanceolata subsp.
scheffleri (Fig. 9) as well as many
undescribed plants that have been
available recently. climbing plants to be a pain especially Fig. 6 Adenia ballyi
during the winter when all my adenias are
Some of the tubers are nice enough and
housed in our house. My wife recently
the leaves can be very attractive but I find
remarked that she would like our bedroom
to return to being somewhere to sleep,
rather than somewhere to house my plants
for the winter. She just doesn’t understand.
A. stenodactyla (Figs. 10, 11 and 12)
flowers for me, nice bell-shaped flowers
with a sweet vanilla scent and last summer
produced one fruit. A few months of
expectant waiting led to disappointment
though, it was empty.
Pachycaul climber
These include many mainly Madagascan
species such as A. firingalavensis (Fig. 14)
A. monadelpha, A. stylosa, A. epigea,
A. olaboensis and more. A. monadelpha
Fig. 7 Adenia ovata and A. olaboensis are a couple that you

Fig. 8 Adenia sp.'Narrow Leaf' Fig. 9 Adenia lanceolata ssp. scheffleri

11
Adenia – types, shapes and forms continued

Above: Fig. 10 Adenia stenodactyla Fig. 12 Adenia stenodactyla

fruit August 2017
Above right (inset): Fig. 11 Adenia stenodactyla
flowers on climbing tendrils before the foliage
develops

could probably live and A. stylosa can become

without, but some of the huge; caudices of up to three
others are very rewarding feet across (approx 1m) are
Right (insert): Fig. 13 plants to grow. A. stylosa is common.
The flower of a green probably the best among them with its A. perrieri is another very desirable
leaved form of often ball-shaped stem base and beautiful
Adenia stylosa in the
Madagascan species. Plants with heavily
collection of
maroon red leaves (Figs. 1, 2, 13, 15, 16, dissected green and white leaves have led
Christophe Quenel, 17, 18 and 19, also the front to this being given the common name ‘The
Antananarivo, page). In habitat in northern Snowflake Adenia’. My plant is not that
Madagascar Madagascar A. epigea well endowed with white on the

Fig. 14 Adenia firingalavensis Fig. 15 Adenia stylosa

12
Adenia – types, shapes and forms continued

Some remarkable Adenia in habitat in Madagascar

Above left:
Fig. 16 Adenia
stylosa
(Ankarana,)

Above right:
Fig. 17 An
ancient
Adenia sp.
probably
Adenia stylosa
(Baie du
Courrier)

Left:
Fig. 18 Adenia
sp. probably
Adenia stylosa
(Orangeana
forest)

Right:
Fig. 19 Adenia
sp. probably
Adenia stylosa
(Orangeana
forest)

13
Adenia – types, shapes and forms continued

A. firingalavensis, A. epigea and A. stylosa

are very attractive, resembling sticks of
molten wax (Fig. 20). A. firingalavensis will
retain its green waxy coating when mature
but A. stylosa and A. epigea become
brownish-green and woody. Still very nice
plants though.
A. venenata is a very nice African species.
Seed of A. venenata is easily available and
germinates as well as any Adenia I have
tried, though the seedlings seem to be a bit
more inclined to lose their roots, if kept too
wet, than the Madagascan species. Not the
end of the world though as the stems will
root again without too many problems. One
annoying habit these plants have is a
tendency for the stems to die back a bit
during dormancy leading to a jointed
appearance that I do not find that pleasing.
Apart from A. stylosa and A. epigea I have
not noticed this on plants in habitat, which
generally produce long uninterrupted stems
climbing high up into the surrounding
vegetation. Maybe a little moisture during
dormancy would be beneficial?
Flask shaped caudex with woody
stem
Fig. 20 The similar leaves and I am always on the lookout for a
A. heterophylla (Fig. 21) is an Asian species
looking caudices of better marked clone. Maybe you can help?
(pretty much the only Asian species
one year old Interestingly the original description does
regularly offered by nurseries) that forms a
seedlings of (L-R) not mention white on the leaves.
Adenia epigea, pleasing conical woody caudex with a
Adenia firingalavensis Seed is available for some species if you persistent climbing stem. The leaves are
and Adenia stylosa look hard enough and the seedlings of three-parted, green with no white. The

Fig. 21 Adenia heterophylla Fig. 22 A. sp nova Ghazi Hills Fig. 23 Adenia ellenbeckii
14
Adenia – types, shapes and forms continued

Above left:
caudex will get to a decent size. nurseries, described as having pubescent
Fig. 24 Pepperoni
A. viridiflora has been offered by one or rarely glabrous (bald) stems. My plants pizza perfumed
German nursery recently but the plant I are on the bald side. Nice blue green stems flowers of Adenia
received is A. heterophylla. A. sp. nova mottled/spotted grey from pleasingly keramanthus
‘Ghazi Hills’ (Fig. 22) is a pretty ugly plant chunky rootstocks. The main difference Above:
recently appearing on one Kenyan between the two is that mature Fig. 25 The hairy, red
specialist nurseries list. I would not bother A. ellenbeckii has tendrils and A. volkensii streaked stems of
with it. This nursery sells almost exclusively does not. A. volkensii has peltate leaves Adenia keramanthus
habitat collected plants and they really (the leaf stalk attaches to the leaf blade
should have left these where they were. from below like a Nasturtium) as a juvenile
plant. Although I can find no mention of
Stem succulent with or without
this for A. ellenbeckii, one of my small
tendrils plants also has these, so this may not be
Most Adenia species are climbers to some enough to separate them as young plants.
degree but there are few that are very nice
stem succulents. A. keramanthus (Figs. 24,
25 and 26) is an East African species and
one of the few adenias with hairy stems
and pubescent leaves. It will branch
sparingly from pale green stems an inch or
two wide. The easiest Adenia to flower for
me, in fact given heat and moisture it is
difficult to stop it. The flowers smell of
pepperoni pizza to me, but my wife finds
the scent unbearably sickly and when it is
flowering in our house during the winter I
have to find a place for it well away from
her nose. I would love to find some seed of
A. keramanthus, I saw some very attractive
seedlings in habitat in Kenya. Some people
like to raise the roots of A. keramanthus
but this looks very odd to me as it does
nothing to enhance the look of a plant that
is good looking enough without such help.
A. ellenbeckii (Fig. 23) and A. volkensii are
two similar species regularly offered by Fig. 26 A. keramanthus seedlings near Voi Kenya

15
Adenia – types, shapes and forms continued
A. lapiazicola (Figs, 27 and 28) is a recently Shrub with spreading swollen base
(1997) described species from the and perennial climbing stems
Ankarana National Park in northern These include the well-known grey-green,
Madagascar. Thick silvery stems up to six corky based southern African species,
feet (2m) tall or more seem to grow straight A. glauca, A. spinosa, (Fig. 29) A. fruticosa,
out of the limestone tsingy. I found it A. pechuelii and others. Although similar in
incredible that such an obvious, imposing many respects they are all distinct enough
plant from a well botanised area should in other ways to warrant keeping them all.
only be described so recently. It is not in A. glauca has attractive deeply 5-lobed
cultivation as far as I know. Another lovely leaves and a ‘polished’ conical caudex.
Madagascan plant is A. ecirrhosa, dark A. spinosa has entire grey-green leaves on
green leaves slightly touched with white stems arising from a round matt caudex.
from a stem coming once again from nicely A. pechuelii has entire leaves similar to
Below and inset:
Figs. 27 and 28 swollen roots. As the specific name A. spinosa on a conical caudex when
Adenia lapiazicola, suggests this does not have tendrils. Rare young and A. fruticosa deeply 3-5 lobed
Ankarana, in habitat apparently but occasionally leaves, both appearing on the same plant,
Madagascar available to collectors as seedlings. and a less regular caudex. Caudices on
older plants of A. glauca, A. spinosa and
A. pechuelii will spread out forming
caudices broader than tall. A. fruticosa
tends to stay skinnier with swollen stems
rather than a caudex. A. spinosa is
obviously spiny, one of only a few Adenia
species to possess spines or thorns.
All are very easy-going plants, requiring
less heat in winter than many of their
relatives. A minimm of 6°C seems to suit
them fine though I have found it is
beneficial to give them a bit more warmth
in spring to break dormancy, otherwise
they will wait until early summer before
coming into growth. With enough heat
A. glauca, A. spinosa and A. fruticosa will
only take a short break in the winter, late
November until March. A. pechuelii has a
very short growing season for me, mid-
late summer to early autumn, only a
couple of months in leaf. They
seem to appreciate a bit more
shade than most, I keep mine in
a north facing conservatory and
they thrive there, putting on a
satisfying amount of growth
and increase in caudex size
each season. Most of this
increase in the size of the
caudex seems to take place
late in the season in the couple
of months prior to dormancy.
Too much sun can scorch the
leaves. Generally they are easy
plants to find except A. pechuelii
which may take a bit of looking for
and will not be cheap. My plant came
as a seedling from Specks a few years
ago. He also sold by auction an older
plant when he closed his business a couple
of years ago: it went for over 5200 euros!
16
Adenia – types, shapes and forms continued
Sprawling shrub from thickened root.
I have a couple of plants in my collection
that form trailing shrubs that will climb
occasionally. A. isaloensis (Fig. 30) is a
pretty uninspiring plant when seen in
habitat at Isalo National Park in south-east
Madagascar. Sparse stems with dull blue
grey-green leaves trailing along the ground
arise from a tuberous root. I have some
seedlings and maybe this will produce a
more attractive plant in cultivation.
A. subsessilifolia also from south-east
Madagascar is a better looking plant with
small grey-green 3-parted leaves on again
sparse stems from a tuberous rootstock
that can apparently grow to 30cm across.
Regular pruning should produce a good
looking plant in a pot. Seed of A. isaloensis
has been available recently and seedlings
of A. subsessilifolia are available from a few
nurseries.
A. metamorpha (Fig. 31) is an interesting
recently-described plant that does not
easily fit into any of the types already aff. perrieri for hundreds of dollars. It is Fig. 29 Adenia
discussed. The juvenile plants are reasonably common in Ankarana National spinosa
geophytes with a tuber and short erect Park in north Madagascar growing on the
stems with extraordinarily attractive deeply forest floor.
lobed green and white leaves. After some
The genus Adenia is remarkably diverse,
years the stem becomes thickened and
and those featured here are just some of Part 1 of this article
cylindrical up to 2m tall and the plant
the many different species which I grow appeared in the
myself, or I have seen in habitat. n
becomes a short climber with plain green, Essex Succulent
entire or shallowly lobed leaves. This is the Review, Issue 17,
plant being sold online as Adenia sp. nova Photos: Nick Gash June 2018

Fig. 30 Adenia isaloensis Isalo Madagascar Fig. 31 Adenia metamorpha Ankarana Madagascar
17
 Mammillaria hahniana – a
small clumping form
which always looks great
but is even better when in
flower. My form seems to
have darker flowers too
and that is a bonus as
there is added contrast

What I’m interested in today…

by Ian Thwaites

When I first started growing cacti and succulents I

was attracted to the body shape, colour, form and
to see the rare and very unusual plants that were
available at that time. I slowly became addicted to the
spines of the plant. The flowers were in fact a bonus, hobby, the plants and the people many of whom have
but occasionally I purchased plants such as become very close family friends. On every visit to the
Notocactus solely for the flowers because they nursery there were different plants on display and
exhibited such stunning colour and sheen. available to purchase. I was like a kid in a sweetshop,
and very quickly my greenhouse became full as more
As my collection grew so did the diversity of the plants
and more plants were added.
that it contained and each morning I looked forward to
viewing my small windowsill collection. It was always a Shortly after I was invited to take my first trip to habitat
bonus if there was a flower open, but surprisingly the and once you have seen plants in the wild the diversity
most excitement was generated when I spotted a new of your collection increases, because the plants have
flower bud forming close to the plant body, or a new that personal connection.
spine cluster growing, which often has a lovely fresh Very quickly the second 20 foot greenhouse was
and vibrant colour. The only constraint I had was that purchased and slowly the benches became full. As I
my mother insisted there were no plants with hooked had a very good job, and no dependants apart from my
spines after the Mammillaria zeilmanniana attached fast car, I had the budget to purchase those rare and
itself to the curtain one evening and deposited gritty unusual plants that are seldom seen in cultivation. I
compost all over the carpet. had to get that new plant and timed my visits to
various nurseries to coincide with new deliveries of
As my enthusiasm grew so did my collection and
those special and very rare plants. It was not
eventually I purchased my first greenhouse. This was a
uncommon for me to purchase a dead-looking plant
wonderful opportunity because I was now not
solely because it had a label that indicated it was a
constrained by the number of plants in my collection or
rare or new species, which I would take home in the
the size of the plants that I could grow. It was at this
hope that I could establish it. On most occasions it
time that I started to read lots of cactus and succulent
would grow but, while it was interesting, there were
books and meet fellow collectors, both in the local
times when I wondered why I bought such a plant!
Cactus Society Branch and further afield.
Often with a caudex you get a thin vine which will
I also became good friends with June and Tom Jenkins clamber and sprawl all over your collection and
the owners of the local Cactus Nursery ‘Jumanery’ and generally make it untidy. However I was the owner of
started to visit often. It was at this point that I started that rare and unusual plant, so I was happy.
18
What I’m interested in today... continued

Jumping forward a few years, I was married, had I had lost direction and I needed to do something, but
children, my mother died and I needed to move my what? Action was needed and I decided to examine
collection, still based in my mother’s back garden. my plants and select those that I thought were
I could accommodate two greenhouses but these were attractive and interesting. The criterion I finally used
only half the size of those in my mother’s garden. I had was ‘would I buy this plant again if I did not have it in
to thin out my collection my collection?’
by 50%. So how would I
Over the next year or so I
choose which ones to take
slowly disposed of the
and what would I do with Enjoy your plants and grow what you plants that did not meet
those left?
like. It’s not necessary to grow rare or my criteria and amazingly
Over the course of four spaces appeared on the
weeks I tried to choose expensive plants.... bench. As this is a hobby
my best plants and slowly I was happy to give the
disposed of the remaining excess plants away. I also
plants to local branch sold a few on ebay or at
members or finally the skip, which was heartbreaking. plant sale events organised by my local branch. There
For the next few years my collection contained the were some difficult decisions to be made as I had
same mix of plants and still had lots of vines growing some sentimental attachments to some plants. Now I
over my succulent collection each summer. Slowly I have developed this discipline it is easier for me to give
filled every conceivable space within my collection and plants away as and when my interest slowly matures
it became full to bursting. and changes.

This was my wake-up call. I was not enjoying my So where am I now on this journey? I now enjoy going
collection and some of these ‘rare’ and choice plants into my greenhouse again and also getting new plants.
were now quite boring to me, or had become thugs I no longer buy anything I do not find attractive and
and were taking over all the space in my greenhouse. this means that sometimes I will acquire a very
Something had to change. common plant again. A recent gift from a friend is a
Crassula ovata ‘Hummel’s Sunset’ and I am really
enjoying this. It is growing on my patio and when the
weather cools it will get a good spot on the bench in
my greenhouse. I have rediscovered mammillarias and
have slowly been adding these beautiful plants back
into my collection. I have started growing a few
Notocactus and I now have my favourite plant in pride
of place – Setiechinopsis mirabilis – whose night
flowers still excite me every time I see a bud just
starting to open in the evening.
Enjoy your plants and grow what you like. It’s not
necessary to grow rare or expensive
plants. If you want to spend
some money – buy a
magnifying glass as this
will open up a new
opportunity to enjoy
your collection. It is
a great hobby and
there are some great
plants for us to
enjoy. n
Photos: © Ian Thwaites
Ian Thwaites photography

When you get close to

your plants you enter
Trichodiadema bulbosum is a wonderful such an interesting world
mesemb to grow and will reward you all of colour, texture and form.
summer with its flowers. It will require regular Its often worth having a close
pruning to keep the plant compact and aesthetically look at your plants and a magnifying
interesting, but you can root up the trimmings! glass can be really handy tool

19
Legends of the saguaro
The saguaro (Carnegiea gigantea) was important to the native Indians who lived in the
areas where it grows, and a number of legends and beliefs have grown up around it.

ThetheTohono O’odham people traditionally lived in

Sonoran Desert, in Arizona and Sonora
him into her arms but the spines of the saguaro
killed her.
(Mexico). The name Tohono O’odham means ‘desert
However the saguaro and the palo verde remained
growing together. n
people’.
They believe that the saguaro is sacred, as it arose
from drops of sweat falling from the eyebrows of their
creator god, I’itoi. These turned into pearls, and then Palo verde
grew into saguaros when they touched the ground. Parkinsonia aculeata (the yellow or little-leaved palo
An alternative belief is that a young boy had become verde) or Parkinsonia florida (blue palo verde) are
lost in the desert and fell into a hole. He later both found in the Sonoran desert. The name palo
emerged as a saguaro. verde is Spanish for ‘green stick or wood’ and the
trunk and branches can perform photosynthesis.
A similar story to this tells of a young girl, who was
looking for her mother. She was guided by a bird to Palo verde might act as a nurse tree for the
the place where her mother was living but, before she saguaro. The tree protects the seedling cactus from
could enter the village, she sank down into the extreme heat or cold; the saguaro is growing at the
ground. Later she rose up again as a saguaro, with northernmost edge of the usual range for ceroid
her arms raised heavenwards. cacti. As the saguaro grows it might kill its nurse
tree as its shallow roots can take up available
The Akimel O’odham, (the name means river people), water before it reaches the deeper rooted tree.
often referred to as the Pima, traditionally lived along
the Gila and Salt rivers in Arizona. They
tell a story of how the saguaro came to
be associated with the palo verde.
Once there was an old Indian woman
with two grandsons. Each day she
prepared porridge by grinding wheat
and corn and boiling it up in a water-
olla (a ceramic cooking pot).
One day the elderly woman placed the
cooking pot on the fire outside the
house and told her grandchildren to be
sure not to upset it. However they
soon started to quarrel and upset the
pot, spilling the boiling water.
Their grandmother was angry and
spanked them, so the children ran
away. They fled far over the mountains,
whistling as they went. The old woman
ran after them, but could not catch
them.
At last the older boy exclaimed, “I will
turn into a saguaro, and live forever”.
The younger replied, “And I will turn
into a palo verde tree and make these
mountains green”.
How they did this is not explained, but
when their grandmother eventually
found them she recognised the voice Carnegiea gigantea and palo verde trees in the McDowell Mountains in
of her elder grandson. She tried to take Scottsdale, Arizona. (Photo: Nicholas Hartmann) Available under licence

20
Two interesting
Euphorbias
No 3 – Zimbabwe and Madagascar
by Bob Potter

Mme to some really interesting plant

y travels over recent years have taken were in an English woodland, sparse thin
trunked trees and a grassy ground covered
habitats, home to many of the Euphorbia with leaf litter.
species. I would like to introduce you to
Euphorbia decidua has a large underground
a couple of interesting plants found on
tuber and, in the growing season, has
recent trips.
green angled stems radiating from the
For our first stop we will visit Zimbabwe crown of the plant, which die back every
again. In one of my previous articles I took year. So be there at the wrong time and
you to a location North West of Harare you will never find the plant. Luckily for us
called the Great Dyke an area loaded with we were there at the time that the new
very mineral rich soils where we found season’s growth was starting and with
Euphorbia wildii. Staying in the same careful perusal of the terrain we were able
location, but a bit further North, we came to spot the plants.
across the habitat of another much sought Once you have found the first one others
after plant. seem to come easily and it is very evident
Euphorbia decidua that this area is loaded with plants.
I am constantly astounded by the locations We were travelling with two members of
that some euphorbias grow in and this spot the Aloe, Cactus and Succulent Society of
is no exception. It looks just as though you Zimbabwe and they decided that they
21
Two interesting Euphorbias continued

Euphorbia decidua would take a few plants to be grown on case, as I tend to bury the whole tuber
Above: New shoots in their gardens back in Harare. Several rather than raise a portion of it above the
just emerging tubers were excavated very carefully soil as many people do.
Above right: The and you can see from the pictures how
large tubers large the underground portions of these It has also been available as seedling
plants are. plants and these have proved to be quite
easy to grow. I usually keep these plants
Fairly mature plants of E. decidua have, in with a minimum winter temperature of at
recent years, become available and usually
least 10°C.
do not present too much problem in
cultivation. A very deep pot is needed to For the next location we jump back into
house the large tuber, especially in my Madagascar and explore a region in the

The wooded habitat of Euphorbia cremersii

22
Two interesting Euphorbias continued

North West of the Island. In a previous rotting off. It has been available as seed Euphorbia cremersii
article I have already described finding a grown plants but only in very limited in habitat
location of E. guillauminiana and the plant I supply. If you are lucky enough to obtain a
would like to introduce now was one we plant it does make a worthwhile addition to
found on our long trek to get to this plant. the collection and has the added
advantage that you know you will always
have the space for it. n
Euphorbia cremersii
Euphorbia cremersii is a small geophyte
with tiny tubers usually no more than 1cm Photos: Bob Potter
in diameter, mostly rounded but sometimes There will be more interesting Euphorbia in
cylindrical up to about 5cm long. another issue of the Essex Succulent Review.
Again, the habitat of these plants in this
location is, for me, very unexpected, it
looks as though you are entering a wooded
area with dense bush cover under the
trees. In small clearings you can spot the
leaf rosettes of the plants with quite
distinctive variegated markings. The leaf
rosettes are no more than 10–12 cm across
and of course at the wrong time of the year
there will be nothing to see.
It is evident that there are many plants in
this location as a head count revealed at
least five or six plants every square metre
over quite a large area.
E. cremersii is a sought-after plant by
enthusiasts and, although it has been
available in limited numbers in the past, it
is rarely offered for sale today.
Like all Madagascan species it will fare
better with a minimum winter temperature
of at least 10°C and needs a very free
draining soil, as the tubers can be prone to Euphorbia cremersii in cultivation

23
Western Flower Thrips control
by Don Smith

If you are a Lithops collector, you may have come The problem is that, although a population may be
across Frankliniella occidentalis, Western Flower controlled, it becomes resistant to insecticides if it is
Thrips. This is a pest which has come to infest our not entirely eliminated; which is possible but difficult.
greenhouses. Because it is so small it usually passes Sticky cards serve only to monitor the adults in the
unnoticed until, with a magnifying glass, you have population. A systemic insecticide would be ideal but
learned to recognise their tiny (1–1.4mm) dark brown I have not found anything satisfactory in the retail
bodies moving among the petals. horticultural trade.
In Lithops the eggs are inserted into flower tissue using I have, however, created a tincture of nicotine in
an ovipositor and when these hatch the nymphs methylated spirits. It is easy to prepare this by
burrow down as far as the meristem. This results in a dropping two or three cigarettes into half a bottle of
characteristic light brown scar which appears many meths and allowing it to stand for a few days. It is then
months later across the face of next season’s leaf-pair. available to be applied to individual flowers and stems
They feed on both pollen and sap. Their mouth parts using a small artist’s watercolour paint brush. It kills on
puncture and damage the flowers and skin of other contact but the eggs and nymphs contained within the
mesembs and cacti; they are also found on the tender plant tissue will remain unaffected; also, as pupae they
tissue of new leaves on other plants. In the UK they exist unseen in the compost. The tincture is also
seem to exist only as effective against mealy
isolated populations inside Western Flower Thrips damage on Lithops bug.
our greenhouses but
What would be useful is a
fortunately not in the open
liquid insecticide which kills
air. They come to us on
plants recently purchased instantly on contact,
or as an unwitting gift from preferably easily applied as
a friend. a fine mist from a
pressurised spray container
The populations are difficult and which does not spoil
to eliminate, or to control, the flowers or plants. This
due to an elaborate life- should have a volatile liquid
cycle, passing through six
L. comptonii with a very low surface
distinct stages from egg to
tension which enables it to
adult in the course of two
spread quickly in the flower
to three weeks. The adult
and over the carapace of
has wings and can fly and
live on for another 45 days, the arthropod and then
laying up to 300 fertile eggs evaporate to leave some
in this time without the persistent residue which
benefit of male intervention will continue to kill for
(parthenogenesis). about two to three months.

They are attracted to the On the shelves of some of

colours blue and yellow the bigger supermarkets in
L. meyerii
and variously to ultra violet the UK, and on the internet,
A and B. They tolerate I have seen such a product
temperatures in the range intended to treat household
of 8° to 35°C. On the infestations of fleas and
internet there are many ticks which originate from
scholarly articles by pet dogs and cats but,
entomologists describing, unfortunately due to EU
with illustrations, everything Law, this is sold only for
you need to know about the purpose described on
these little fiends. The only the label which is not a
good thing about them is horticultural use. n
they are reported to eat the L. geyerii
eggs of spider mites! Photos: Don Smith

24
Ferocactus lindsayi
by Paul Klaassen

A comparatively new discovery from Mexico

Ferocactus lindsayi was discovered during

the building of the Infiernillo (Little Hell)
Dam on the Balsas river, on the border
between the Mexican states of Guerrero
and Michoacan, between August 1962, and
June 1965. The species was described in
1966 by Helia Bravo-Hollis, (Cact. Suc.
Mex. 11:9, fig. 4,5), growing in a very
restricted area along the lower reaches of
the river Balsas, between the states of
Michoacan and Guerrero in western
Mexico.
F. lindsayi is extremely slow-growing. As a
result, it is rarely seen in cultivation and, as
it grows off the cactus-tourist trail in
Mexico (not along the Ariocarpus etc
route) it is poorly known. We visited the
type location in Michoacan in 2017 and
found plenty of mature plants, many of
which were in fruit, with strange
boomerang-shaped seeds.
There appeared to be only one European
nursery offering seed-grown plants for sale,
so, during a recent trip to France, I visited
the cactus nursery of Kuentz, in Frejus and
purchased three plants in 10cm pots. Above and header: Ferocactus lindsayi in habitat

25
Ferocactus lindsayi continued

and sown in 2006 with near 100%

germination and very good survival rates.
A month later, while attending the BCSS
AGM, I met my friend Anton Hofer and told
him of my travels in Mexico. He too had
been to at least one location in Michoacan
in 1989, where he had camped in his VW
van for a few days on a spot that is now
buried as a result of building a new
highway. There were not many other cacti
to see, so he collected a ‘supermarket
carrier bag’ full of F. lindsayi fruit (this was
legal then). The plants we saw were higher
up the hill.
Anton sold most of his seed to Koehres
who said that he had never before been
offered seed from that taxon. Anton’s
experience is that freshly collected seed
does not germinate – the seed has to
mature for some years first.
This is born out by the experience of Aad
Paul Klaassen (right) The current owner, Henri, is the third Vijverberg, who raises all his plants from
with Henri, holding generation owner of the oldest cactus seed. He had acquired seed of F lindsayi
three F. lindsayi at nursery in France, founded in 1907 by his more recently, but obtained very low
Kuentz’s nursery grandfather, Emile and continued by his germination rates and the few seedlings
(Photo: Angie Money) father, Robert. that came up died within a week. His
treatment was the same as for all his other
It was good to see F. lindsayi again but,
ferocacti, which he raises very
while the three trays of plants that we saw
successfully.
looked very consistent they did not closely
resemble the plants that we saw in So it sounds as though our plants, bought
Michoacan; although the plants I saw in in France, came from seed originally
habitat were probably much older than the collected by Anton Hofer which, after some
12 year old plants I was purchasing. I 16 years had provided excellent
asked for some more details and Henri germination. n
found a record to say that the seed was
Photos: Paul Klaassen unless indicated
supplied by Koehres in Germany in 2005,
otherwise

Two of Paul’s Ferocactus lindsayi in cultivation

26
 A visit to
Le Jardin Exotique
by Paul Klaassen

After our visit to Kuentz we travelled to the Cap

d’Ail, just outside Monaco, where we were to stay.
The previous day’s welcome sunshine was
abruptly cut short by a thunderstorm over the
Mediterranean that lasted most of the night.
By the following day the downpours had passed and we were back
to a cloudless sky and sunshine for our visit to the Jardin Exotique.
My paternal grandfather was also keen on cacti and succulents
and visited this magnificent garden with his second wife, on their
honeymoon, driving on their Vespa scooter over the Alps from
Breda, in the Netherlands, to Monaco.

27
Le Jardin Exotique continued

In 1965 my father copied this example of

madness by taking us across the St
Gothard Pass from Den Briel in
the Netherlands to Sestri
Levante on the northern
Italian coast in a DAF
750cc car with a
variomatic (rubber
bands) transmission.
As you can tell the
travel bug runs in
the family. Is
madness also
inherited.
Angie and I walked
along every path in the
Jardin Exotique from the
very top of the garden,
including the path into the caves
at the garden’s lowest point.

Some more agaves growing in one of the many rocky A cristate Polaskia, one of many interesting cristate cacti
outcrops
28
Le Jardin Exotique continued

Above:
Beaucarnea
recurvata and left
close-up of the
textured trunk

Some notes on Le Jardin Exotique

by Sheila Cude

It seems that the very first succulent plants were brought to Monaco,
from Mexico, in the 1860s. By 1895 a collection of succulent plants was
grown in the Jardin St Martin, a smaller garden located below the rock
of Monaco, under the direction of Augustin Gastaud. Gastaud also
received other succulent plants from collectors in Europe, all of which
thrived.
Albert 1 (ruler of Monaco from 1889 till his death in 1922), was a keen
naturalist (who was also interested in oceanography and polar
exploration). In 1912 he acquired the Promontory of the Observatory, in

29
Le Jardin Exotique continued

Monhegettii, which is the present site of Le Jardin Exotique.

The gardens are located on a steep cliff with superb views stretching as
far as Italy. A large limestone cave, some 60 metes underground, with
evidence of prehistoric human inhabitants, was discovered in 1916.
The gardens cover some 11,500 square metres (2.84 acres) and are
home to some 6,000 species and varieties of succulent plants. The
transformation of the garden site was directed by Louis Notari, then
Monaco’s Chief Engineer. The work included improving the drainage,
constructing natural looking rocky sites and building footbridges. It took
20 years to complete, with a break of four years during World War 1.
The gardens were opened to the public in 1933 when the first director
was Louis Vatrican, after whom Vatricania guentheri was named (in the
‘New Cactus Lexicon’ this is now Espostoa guentheri). He remained the
garden's director until 1969 and was responsible for introducing a range
of South African succulents to the gardens.

Reference
Cohen, Paul and Brenda, Le Jardin Exotique, Les Grottes de L’Observatoire and
Le Musée D’Anthropologie Préhistorique in Monaco. Journal of College Science Photos: Paul
Teaching 28(3) 208-209 Klaassen

30