Question
Hi Mark. I have three bougainvilla plants around my house and have a very difficult time getting them to bloom very much. two are planted in the ground and one is in a pot. All are medium - large, about seven feet tall. I fertilize with 15-30-15 every 3 months.
I live in the tampa bay area and see these plant blooming virtually all year long. Mine look healthy,lots of green foliage but almost no flowers except in the spring when i get a little flowering.
Is there another fertilizer I should be using? Maybe it's the way I prune them. Any tips would be appreciated.
Thanks.

Answer
Mike,

Sorry.  I'm a little too far north to have any experience with Bougainvilla.  It's a roll of the dice if it survives here, so I never plant it.

The best I've got is a link to a discussion of Bougainvilla problems:

http://forums.gardenweb.com/forums/load/swest/msg0809531928874.html

Maybe you'll recognize a solution in that discussion.

For what it's worth,
Mark in Portland