Experts and BHG readers answer.
How do I prune my bougainvillea?
Bougainvillea (Bougainvillea) tolerates heavy pruning. You can safely prune off about three-quarters of the plant in late fall or early spring. Avoid the need for repeated severe pruning by lightly pruning the plant every year in late fall or early spring. Use a sharp pair of pruners to cleanly remove spent blossoms, several inches of new growth, and dead or diseased twigs