I grafted it in December and made a photo album showing the growth of the scion. The grafting stock is Harrisia jusbertii. The current size is about 6 cm daimeter including many pups. I expect some flowers in next spring.

Since the germination ratio was so poor, I tried tubercle grafting. 2 tubercles have been grafted well but they have not moved yet.
Please have a look my album.

Where did you source your seed from?

Fof

I have experienced sucsessfull result of mammillaria tubercle graftings with bocasana, plumosa and theresae. They have been glowing very well and got flowers next year after grafting.
Pups came out from root of areole in the case of bocasana and plumosa but it came out from root of tubercle in the case of theresae. I think luethyi will show as same as theresae. I have grafted 10 luethyi tubercles and been waiting next spring.

Frank

Sorry I know very little about grafting. Is grafting used as a way of encouraging stronger and more rapid growth? Do you then root the graft when it is larger, or leave it grafted?

Thanks

Swiss

The sprouts come out in the third photo are tubercles forming.

I use the seedling grafting for:
To collect rare cactus seeds in short time in-house.
Almost all gragted seedlings are in flower 1 year later
after sowing. I experience that Turbinicarpus laui got
a flower 3 months after sowing.

I also try to develop new hybrid cactus. I need a quick
life cycle of plant to develop new one.

I narmally de-graft grafted cactus once collected seeds and size becomes larege enough.
I use 2 methods of de-grafting. One is normal de-grafting and the other is remained short vascular bundles of grafting stock. In 2nd case, roots come out from the vascular bundles and remained grafted character.

Frank