Why a Bougainvillea Has No Blooms

Light

• The location of the bougainvillea will affect its ability to bloom. This type of plant requires five or more hours of full sunlight a day for proper blooming. If it is situated in an area where there is full or partial shade, it will grow but the number of flowers and colorful bracts may be minimal. If this is the case, relocating it to a place that receives a minimum of five hours of sun may remedy the problem.

Improper Fertilization

• Overfertilization will increase the vegetative growth of the bougainvillea, but it will also hinder its ability to bloom. To fertilize your bougainvilleas, use 1 tbsp. of straight hibiscus fertilizer every three to four weeks in the spring and summer months or a half-strength water-soluble fertilizer. In the late fall and winter months, stop fertilization completely.

Ground Planting

• Bougainvilleas that are planted in the ground are slower to bloom than those that are potted. After the initial ground planting, this type of plant will grow quickly. Until this rapid growth slows and the plant settles into its location, blooming will be minimal to nonexistent for two or more years. During this time the plant will respond better to neglect as fertilization and watering will further delay the blooming process.

Too Much Water

• Bougainvilleas that are overly watered may fail to bloom. Generally the soil should be allowed to dry out slightly between waterings. Depending on the soil, environment, size of the plant and pot, the amount of water may need adjusting. Allow the plant to dry nearly to the point of wilting between each watering until it begins to bloom. Once the plant does begin to bloom, resume a normal watering schedule.