Just piping in to say, I have found a partner for my Aloe polyphylla! I wasn't even looking and went to the hardware store, B-lined to the succulent area (which is always sad and neglected) and I couldn't believe my eyes, there was one on sale for $5.99 (dry as a bone, with the name on it with wrong care instructions). I think it's probably only a year old, and mine is 4 yrs old so I will have to wait a while before I can cross pollinate but YAY!
Looking forward to seeing how it grows and when it starts to spiral. My 4yo isn't spiralling yet but it looks like it's starting.
Here's the new baby.