What a bougainvillea likes is full tropical sun, moderate watering (unlike most plants, it does better if you keep it on the dry side than evenly moist) and regular fertilization during its growing period. Known for their colorful blooms, the bougainvillea's true flowers are small, whitish and insignificant. The blend is basically 3/4 potting soil with 1/4 compost & succulent & cactus mix. I also added in a few handfuls of chunky pumice in the top 1/3 of the planter.
The reasons for a bougainvillea not blooming are the following: Wrong soil Not enough Light Over-watering Overfeeding Re-potting Heavy Pruning or no pruning Learn how to how to keep bougainvillea blooming or how to force your potted bougainvilleas to bloom by taking proper care of light, watering, fertilizing, pruning and re-potting. So never be in hurry to re-pot. Bougainvilleas are moderately salt-tolerant, fast growers that need full sun to flower heavily.

Helen Johnson is best kept trimmed to about 3 feet, while the miniature Sunvillea (left and below) can be kept a bit smaller. Vibrantly coloured bracts of Bougainvillea brighten warm greenhouses and conservatory borders during the summer. Although not a plant pest, there is also a dangerous-to humans-pathogen sometimes related to Bougainvillea. A part of the bougainvillea’s appeal is that they are relatively disease and pest-free plants. The bougainvillea was named in honor of Count Louis-Antoine de Bougainville, an 18th century French aristocrat, navigator and explorer.

To eliminate this critter use an insecticidal soap or a spray with pyrethrin. Safer Brand 5452 3-in-1 32-Ounce Ready-to-Use Garden Spray is a good option!.

Having a bougainvillea in your garden, either in a pot or in the ground, is always joyful due to the gorgeous flush of color. Bringing Bougainvillea Indoors. The bougainvillea was named in honor of Count Louis-Antoine de Bougainville, an 18th century French aristocrat, navigator and explorer. These plants are very hardy and will survive without much water or fertiliser. In warm climates, a bougainvillea plant can be grown as a vine or groundcover, in cool areas it's a great container plant.
A few bugs such as aphids, looping caterpillars, thrips and spider mites may pose a threat. Heavy pruning, lack of water and fertilizer low in nitrogen … I like the idea of creating a larger arrangement by grouping bits of bougainvillea amongst other small vases filled with hydrangeas. Some gardeners in Zone 8 have success with landscape bougainvilleas, especially in a protected, warm microclimate. If placed on a covered porch, screened-in patio or balcony, where the plant receives at least 5 hours of sun each day (afternoon sun is best), then you should see adequate blooms.