Kakteenforum Lithopsforum und Sukkulentenforum von Thomas Schmid

From argentina maihueniopsis, both from the darwinii complex as well from members of the glomerata group from as far north as San Juan have experienced temps to around minus 20C here in my greenhouse and being frozen for for 6 weeks and more (but most day/nights between minus 5 to minus 15C) . A few ...

Jiri, whats your experience with the germination of Cumulopountia seeds?
I have yet to germinate any.

I should note that I have germinated serverel 1000 opuntias from cold zones as well as many argentina Maihueniopsis without much problem. But I havnt germinated any Cumulopuntia. Any advice ...

Growing these are rather easy:
Use a very sandy/gravel mix, no organic material.
Use a claypot where the water can travel through.
Only water when its warm and sunny.

And then no problems. Only one species is currently recognized. Micropuntia (Grusonia) pulchella.

Martin

All my maihueniopsis were solid frozen for 3 months the past winter. But I dont include the members of Puna in Maihueniopsis.

http://images44.fotki.com/v1357/photos/1/1421395/6902312/Obasilaris3-vi.jpg

Here the same plant in cultivation. thank you for your very nice pictures!

Would be nice to get the seeds as I only have one clone and it does not represent the species in the area I can see. I need the type with spines ...

Its 28 years ago and the understanding of these species have changed a lot since then. O basilaris aurea is today a synonym of O aurea. These are not related. The problem is that often information is just reproduced and not evaluated. Anderson did so in his big book the cactus family, accepting O ...

This one is an almost alpine form, garden tested in Denver, Colorado to around -25C, but dry cold, you can only grow it in the unheated greenhouse in w Europe.

http://images33.fotki.com/v1073/photos/1/1421395/6901920/Cotyledonorbiculata1-vi.jpg

http://images115.fotki.com/v686/photos/1/1421395 ...

This was an old topic, I know that. However, my A striatula flowered this year:






Martin

Talking about basilaris, here is the form called longiareolata, with huge long pads. But the flower is stunning:



Martin

I just plant them out, I have rather well drained wind exposed garden. They grow like weeds here. Some even germinate in the lawn and compeate with Bellis! I have maybe 25 forms or more unprotected in the garden:

http://images42.fotki.com/v1379/photos/1/1421395/6901920/Delospermacray-vi.jpg ...

First of all, let me come with a few points to consider before I ansver. I dont think anyone is an opuntia expert unless they have seen a lot of habitat plants. I have not been in opuntia-land.
the reason is that most opuntioid species are extreamly viable in habitat. You can watch some of the ...

First of all, these are really stunning plants!

The other thing is that the so called O basilaris nana is no basilaris at all but instead O aurea. You can see it on the stigma that is green in aurea but are never green in true basilaris.

These are often confused. Another example is the hardy form ...

Hello all
I know serverel of you maintains a real nice and diverse opuntia collection. I too have a few hundred species and locations under my care and are looking for trade partners in 2009. I am mainly looking for species with provenance but also old collection of Backebergs numerious forms are in ...

Doesnt matter what you grow them in. I have had it growing in anything from pure sand to torf. I have kept it a whole growing season in very wet soil, and in more dry soil. Its an easy plant.

Martin

The small red leafed white flowered D alpina from Sani pass is among the most cold hardy mesembs at all. However, its not particular happy for wet winters and despite a cold hardiness potential to at least -35C, winter wet can kill it. The other form called Sani Pass has yet to get a proper ...