WATER: Keep soil moist but not wet. Flowering tends to be more prolific when the plant is slightly water stressed. Moderately drought tolerant for short periods only.
Fertilize dwarf bougainvillea every other week between the spring and fall with a diluted mix of all purpose, water soluble fertilizer. Cut back to fertilizing once every 4-6 weeks in the winter. Bougainvillea responds well to pruning and should be trimmed in the late summer or early spring to restrain its size.
Direct or indirect sunlight 6 to 8 hours.
Bougainvilleas are fast growing, tolerate pruning very well and are well suited for most bonsai styles. As they are subtropical plants, they can't endure frost and need temperatures around 50° F – 59° F / 10° C – 15° C in winter.
Repotting: Repot smaller bougainvilleas every two or three years. Larger specimens can be repotted every three to five years. A well-draining standard soil mix is fine for this species.