How to Care for a Bouganvillea Plant
Plant your bougainvillea in a sunny location. This plant needs at least five hours of full sun each day, according to Bougainvillea Growers International. If you live in a northern environment, make sure your indoor bougainvillea sits in a sunny window and move it outdoors in warm seasons to take full advantage of summer light. If grown outdoors, night temperatures should stay above 60 degrees Fahrenheit. In northern climates, plants should be brought into a garage or sheltered storage area when temperatures drop.
Water bougainvillea sparingly. Though water needs depend on environmental conditions, bougainvillea is by nature drought tolerant. Once established, it needs little additional water as long as there is occasional rain. Do not allow it to get bone dry, however, as this will cause foliage and bracts to drop off. Do not allow the plant to sit in water. Good drainage is essential for bougainvillea to keep blooming. When grown in pots, make sure there are holes for drainage.
Feed bougainvillea carefully. Bougainvillea are known for their thin and delicate root systems. Use a balanced fertilizer with iron and other micronutrients to strengthen the root system. Timed release fertilizers are a good choice for bougainvillea plants because small amounts of the nutrients are available to the plant constantly. Feed the plant regularly during heavy growing seasons according to package directions. Reduce feedings by half during cool weather.
Prune bougainvillea as needed. You can prune bougainvillea at any time to prevent it from encroaching on other plants or other areas. Pinching back the soft tips with allow the plant to grow fuller and bloom more.