Can you upload a photo of the off-shoot, cutting of your Spineless Yucca (Yucca gigantea) ? I've taken stem cuttings over the years and stuck them in soil where they produce roots rather quickly; lower leaves can be removed to reveal the main stem/cane.
~ I'm an old gal who still loves playing in the dirt!
~ Playing in the dirt is my therapy ... and I'm in therapy a lot!