I was sent a rooted cutting which grew into a good sized plant, but then rotted at the base. However all of the stems that seemed rot free simply refused to root and gradually withered away. Has anybody else has trouble rooting these cuttings? I broke up this winteri plant after it flowered in 2022...

I certainly have a different email and password for the forum and main website. You don't have to be a member to login to the forum. I'm not sure how it happened, but you have to be able to login to the main website to pay your membership, so you don't have to be a paid up member as such. Hope that ...

A very interesting cactus for sure.
Something different......

I contacted a few of the seed suppliers and as ye know those lads don't have time to answer random questions, but a couple did get back to me. They sow their seeds at the end of April, or beginning of May in the greenhouse with no additional heat. With the subtext, "They either come up or they ...

You have a steady hand.
Fair play.....

From my 'extensive' research on the subject over the last week or so, there's a couple of pointers that might help germinate troublesome Sulcorebutias. The European growers tend to sow the seeds at the end of April and start of May with no additional heat. So you'd expect fluctuating night/day tempe...

I was just looking at the monthly temperatures in Sucre, Bolivia where these plants grow and it rarely goes above 20-25 deg.C during the summer. Night time temperatures are lower alright. So I don't think upping the day time temperature over 25 deg.C is going to help me. I think the problem is that ...

Another update, a few days ago the list of František Sibal from the Czech Republic was sent out. The list contains mostly Acanthocalycium, Lobivia, Mediolobivia, Weingartia and Sulcorebutia, but also some other Southern American species. Is František Sibal sending out a list this year? I got seeds ...

There seems to be a few pages missing (invisible print). If anybody has the complete visible pdf I'd appreciate a copy. A pdf editor might be able to make the print visible again. I've extracted all the text into MS Word and re-saved as the attached pdf. You can now see the 'white on white' text eg...