so i was telling my dad i wanted to try and propagate my bougainvillea. i told him what i thought you did, and he told me something way different. i don't even know how he learned it.
i found a video which shows it.. it's basically partially cutting a bougainvillea branch and then causing it to root/grow while still attached.
it's crazy.
if you scroll through the vid, you'll see this guy has one bougainvillea propagating like 100 more bougainvilleas.. wtf.
that's basically what my dad told me he's done & it worked great. crazy. most vids i've seen do it completely different. this seems like such a sick technique.
http://www.youtube.com/watch?v=29i1lEcdHdM