hello, do you know how many cm in diameter is an very old Epithelantha bokei non-grafted?

Hello,

Do you know how many cm in diameter and height is a very old Cintia knizei non-grafted?
I have seen pics with 4 cm diameter and 10 cm height.

Hello, do you know if an adult plant non-grafted produces a lot, few or none offsets/offshoots/compensations?

hello, do you know if an adult plant non-grafted produces a lot, few or none offsets / offshots / compensations?

ralphrmartin wrote: ↑Fri Aug 20, 2021 5:25 pm Here's a side by side comparison of this and the type variety.

IMG_20210820_120849.jpg

Hello,
I'll can't see the difference in size. Could you confirm which is the smallest? A. descoignsii v. augustina or A. descoignsii descoignsii?

Hello, it's known that T. valdezianus is 3-5 cm high and 1-2 cm in diameter and I've read that T. valdezianus v. albiflorus is bigger, but I don't know how much. Do you know all the other differences between "T. valdezianus" and "T. valdezianus v. albiflorus"? (without considerin...

I've been growing all my Haworthias and most Gasterias in pure pumice for the past few years, all from Bob Potter. Bob used to sell a half-full bin liner for about £10. They seem to have much better roots in pumice than anything else. The Haworthia Cooperi Truncata in the photo had no roots last Se...

Did you have problems growing cacti and succulent generes with pure pumice? I mean, South American generes need more acid PH substrate (more organic components). I think I have understood that you always apply fertilizer, no matter the substrate's mix, is that right? And, if you use pure pumice, do ...

Hello, do you know if an adult plant non-grafted produces a lot, few or none offset/compensations?

How long do you recommend keep closed?
And how take care them after opening in Autumn? Water, spray?