question about rooting Bouganvillas
 

Late last November I took four small cuttings from one of my parent's
Bouganvillas, and brought them home to Montreal. I stuck them in
vermiculite, and placed the container in a clear plastic bag next to a
window. They lost all their leaves around Christmas - I did expect that
to happen, since they were in a lower light situation. It's now two
months later and they look like they are still alive (green when
scratched, and one has new shoot growth), but I don't know if they've
put out roots yet. I only checked the least healthy looking one, so the
others might be rooting(??).

I'll be setting up my grow lights next week. Should I move the cuttings
under them? When should I remove the cuttings from the bag? How many
months is enough to assume they've rooted?

Thanks
Bonnie Punch