Bougainvilleas are versatile vines. They can be trained to cascade, climb, fill in borders or fit in containers. They produce large blossoms in a variety of colors, and are relatively easy to take care of. Besides regular watering and fertilization, pruning is their most regular maintenance need. Bougainvilleas grown outdoors benefit from annual cutting back to help them weather the winter, and both indoor and outdoor bougainvilleas can be shaped and trained by cutting their vines back.
Keep long trailing vines not trained to grow up trellises or trees cut back to 1.5 to 2 feet in length to encourage fuller blooming.
Cut back the long new shoots that form at the base of a plant after heavy rains or watering to maintain the shape of your bougainvillea.
Cut bougainvillea to the ground after it blooms to help it weather the winter and come back stronger in the next season.
Cut the blooms of some varieties of bougainvillea like "double pink" that do not shed their flowers after they are spent.