Well, at least 3 out of 5 Mammillaria luethyi grafts made it (I think haha well they're more than 2 weeks old now and have not rotted so I think it's safe to say yes).
I'm on a journey to grafting cacti and I'd like to invite all of you to join me. This blog will keep track of my grafting skills and will serve as an inventory and progress report on all my grafting projects. Cacti are grafted for many reasons and by theory they are done mainly for propagation. I was under that impression but as time goes by, as I've successfully grafted some, it seems that it's more than propagation. Let's all find it out!