Years ago I bought a little cactus, it was labeled Cereus peruvianus, which I believe is no longer a valid name.
It grew well, until neighbor kids hacked it up. The top died, two shoots came out from the side, and they are now two and three ft. long. The plant is under potted, ugly, and I would like to do something with it.
I am thinking to cut off the new shoots, let them dry and callus, then replant them.
My question, how much of the existing green shoot should I plant under toe soil surface to give the plant some stability?
Thanks