How to Grow Bougainvillea
Bougainvillea glabra
Bougainvillea glabra is a vibrant tropical evergreen vine prized for its spectacular, papery bracts in shades of pink, purple, or white. Gardeners cultivate this hardy climber to create stunning living walls, arches, and trellises that add bold color and texture to warm climates year-round.
📷 Wikipedia: BougainvilleaStarting Bougainvillea: indoors or direct sow?
🌾 Sow directly in the garden — Bougainvillea is not usually started indoors.
Start seeds directly in the garden after all danger of frost has passed and soil temperatures are consistently warm.
Soil, care & harvest
Because Bougainvillea is a tropical vine suited for USDA zones 9-11, you should sow seeds outdoors directly after the last frost date has passed. Prepare well-draining soil with a pH between 5.5 and 6.0 to support healthy root development. Plant seeds about one-quarter inch deep in full sun locations. Germination is often slow and can take several weeks under warm conditions.
Space your vines 5 to 10 feet apart to allow for vigorous growth. Provide sturdy trellises or supports immediately, as this plant requires structure to climb effectively. Water sparingly by letting the soil dry completely between waterings to prevent root rot. Apply a light mulch around the base and feed occasionally during the active growing season.
Watch for spider mites and aphids, which can damage new growth; treat with insecticidal soap if infestations occur. Fungal issues like root rot may arise from overwatering or poor drainage. Since Bougainvillea is an ornamental vine rather than a crop, there is no harvest schedule based on days to maturity. Instead, enjoy the continuous bloom that appears throughout the warm growing season.
