Columnar cacti ID + graft compatibility

[mutant]

I bought these as graft stocks. They're like 15 cm high , in relatively small pots, they look healthy and the guy I bought them from confirmed, as I guessed, that they grow fast.

Well, the ID question is econdary, the main is about compatibility. Does it look good for a small san pedro graft?

[Evil Genius]

Hi Mutant! These are Myrtillocactus geometrizans! They can be used for grafting but there are better stocks! bye Eg

[mutant]

I read very good words for Myrtillocactus geometrizans as graft stock. What better stock do you have in mind?

[Evil Genius]

There are many fast growing Trichocereus species or Hylocereus! Most growers i know use Trichocereus Pachanoi! And Pereskiopsis for seedlings! Eg

[mutant]

Danke schoen ;)