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Great, I want to buy seeds too, firstly because I like this cactus, and secondly because I have done some research and apparently it is a good grafting rootstock.

In fact I just grafted an ariocarpus retusus into a pereskiopsis, the ariocarpus is about a week old, I hope everything went well because my hands are shaking haha.

Oh by the way, in the nursery they are selling a 31 years old Echinocactus grusonii, or so says the legal paper of the place where they brought it, as soon as I have time I will go to make some pictures, or it is probably better video, although to be honest knowing that it is 31 years old, I was a little disappointed because its size is not too big, you'll see.