Where I live, these are very common in fact they are almost every where, trust me, by time it will be hard to get rid of them, then trying to cultivate them. Technically if you just trow it on the ground as a leaf it will grow, (every prickle is an opening for a root). But any way good luck and don't forget to cut some of the leaves (when it grows into a tree) to let it grow higher instead of taking the ground.
Thanks hilo ..uncommon up here but I see it can easily become a pest.
Yeah, but the important is to take care of it, if you don't let spread then its a nice plant to have, also does that produce fruits?
Not yet.. They have a lovely large yellow flower. Maybe next year... :-)
I think it will take longer, since the bottom part of the leaves must first grow into a log like form, then it can sustain its self.