Lophphora Williamsii+astrophytum Solved

[biskvit]

Hi!
can u help me identify what tipe of lophophora that is?





10x

Biskvit

[Phil_SK]

I just meant that plants that cope with direct sunlight in the UK might not like Israeli direct sun (although probably not the case with Lophophora!)

[Maria J]

Hi Biskvit!

Sorry, can't help with your ID question, but welcome to the forum anyway!

[Guest]

Biskvit,

The problem with lophophora is they all look alike when small although some look such as lutea with look slightly greener. The larger one looks like a williamsii that is freely offsetting, is it a graft.

Even when they flower it is not always obvious as for example I have a diffusa with very dark (almost red) flowers. It was grown from Mesa Garden seed with habitat information.

To be honest I just label them with the names I buy them as.

[anders]

Bob wrote:

> As both these also like limestone I add gypsum chippings to the compost as well.

This is something that I have never understood (but I have seen it many times before). Why not use marble or limestone instead? Pure gypsum does not have any effect on pH. Or is it just the high calcium concentration that they like?

[Guest]

Anders,

The real problem is getting hold of small limestone or marble chippings, if I could get them I would use them.

[anders]

Really? I have often found white marble chippings in flower-shops and supermarkets here. It is obviously intended for decorative purposes, but I add it to soil for Astrophytum and other lime-loving plants. Is it unavailable where you live? I thought it was a widespread product.