Search found 92 matches

by Roberto A
Mon Apr 16, 2018 8:27 am
Forum: The Cactus & Succulent Plant Forum
Topic: Identity crisis
Replies: 5
Views: 567

Re: Identity crisis

...nowdays we have planty of A. cultivar/hybrids.. and they give a lot of self sowing seedling (that, of course, are all mixed hybrids) in any collection...: so, I would not put a name to a plant witout it as there is a high probability to give it a wrong one....
by Roberto A
Mon Apr 16, 2018 8:10 am
Forum: The Cactus & Succulent Plant Forum
Topic: Sedum mocinianum or piaxtlaense
Replies: 0
Views: 395

Sedum mocinianum or piaxtlaense

I bought, as many of us, this plant as S. hintonii: a species that seems not to be in cultivation, at the moment... So, it can be mocinianum or piaxtlaense... The shape of the Leaves seems to fit piaxtlaense but I think it to be mocinianum as the flowering stem is a bit less than 4cm (it is said to ...
by Roberto A
Wed Mar 15, 2017 9:15 pm
Forum: The Cactus & Succulent Plant Forum
Topic: Sedum mocinianum / piaxtlaense
Replies: 2
Views: 765

Re: Sedum mocinianum / piaxtlaense

This is Sedum paixtlaense, its flowers and flower stems are noticeably different from Sedum mocinianum. A very nice plant, too. .. but I am doubtful about it being S. piaxtalaense as the original description says: <<rosette: lax>>; on the other hand, it says <<rosette: dense>> about S. mocinianum.....
by Roberto A
Tue Mar 14, 2017 9:00 am
Forum: The Cactus & Succulent Plant Forum
Topic: Sedum mocinianum / piaxtlaense
Replies: 2
Views: 765

Sedum mocinianum / piaxtlaense

I recently bought this plant in a garden center; it was labelled Echeveia globulosa: obviosly an error. Now, the plants is the one generally sold as Sedum hintonii, but certanly it is NOT that species. It could be S. mocinianum or S. piaxtlaense.... : the stem and leaves resemble those of S. mocinia...
by Roberto A
Fri Mar 11, 2016 6:23 pm
Forum: The Cactus & Succulent Plant Forum
Topic: GYPSUM
Replies: 14
Views: 2206

Re: GYPSUM

You can get Gypsum alright, but you may have to buy a 25kg bag! I have used it for over 20 years and Cacti thrive on it if you use it wisely. I guess it helps to unlock some of the base key elerments and nutrients for the plants to absorb. Use it sparingly, I use a table spoon full to a bucket of p...
by Roberto A
Fri Mar 11, 2016 8:40 am
Forum: Greenhouse Tours
Topic: Tina's hot greenhouse
Replies: 30
Views: 13502

Re: Tina's hot greenhouse

Beautiful plants!
Is the biggest plant in the third photo an Idria? How long has it been with you??
by Roberto A
Thu Mar 10, 2016 8:34 pm
Forum: The Cactus & Succulent Plant Forum
Topic: GYPSUM
Replies: 14
Views: 2206

Re: GYPSUM

Thanks to all contrubutors, but I think many of you misundestood the question: gypsum is a calcium sulphate and not a calcium carbonate, like limestome for example. That is a BIG difference, being gypsum valuable in providing calcium to the soil lowering (and not raising) the soil pH, being acidic.....
by Roberto A
Wed Mar 09, 2016 9:37 pm
Forum: The Cactus & Succulent Plant Forum
Topic: GYPSUM
Replies: 14
Views: 2206

GYPSUM

Hi. I would ask you something about gypsum (calcium sulphate)... I have never added it to my soil for C&S but I wont to try, now... As far as I know, the "agricultural gypsum" is from just crushed natural gypsum rich rocks and is calcium-sulphate dihydrate; on the other hand, "plaster of Paris", for...
by Roberto A
Thu Jun 11, 2015 9:44 pm
Forum: The Cactus & Succulent Plant Forum
Topic: Cereus cv. Florida
Replies: 0
Views: 863

Cereus cv. Florida

Hi..
has any of you any news about Cereus (peruvianus?) cv. Florida?
Have you ever grow it to any size?
Thanks.
Roberto
by Roberto A
Sun Jun 07, 2015 6:48 pm
Forum: The Cactus & Succulent Plant Forum
Topic: Pilosocereus pachycladus MMd1049
Replies: 2
Views: 776

Re: Pilosocereus pachycladus MMd1049

Thank you very much, Ian