Bougainvillea

Name: Bougainvillea
Brand: Outdoor Dream Builders

Bougainvillea spectabilis

A spectacular vine available in many colors and forms, bearing large thorns and producing high litter.

Frost-tender in USDA zones 9b-11; it defoliates or dies back in the mid-20s°F and can be killed by hard freezes, but flourishes in the extreme heat of the low desert.

AMWUA Notes

A low-water vine that blooms best under mild drought stress; its large thorns and heavy bract litter make placement away from pools and paths important.

Care Guide

💧Watering

Water deeply but infrequently, letting the soil dry well between; deliberate mild drought stress actually triggers the heaviest bloom, while overwatering yields all leaves and no color.

✂️Pruning

Prune to shape and control size after each bloom flush and after frost; wear heavy gloves for the large thorns and expect ongoing bract-and-leaf litter cleanup.

🌱Fertilizing

Feed with a bloom-type (higher phosphorus) fertilizer during the warm season; go easy on nitrogen to keep flowering strong.

🛡️Pests

Watch for bougainvillea looper caterpillars that notch the leaves, plus aphids; disturbing roots at planting can cause transplant shock.

☀️Seasonal Notes

Blooms in flushes spring through fall and nearly year-round in warm winters, but is frost-tender and drops leaves or dies back in the mid-20s°F, recovering with heat.

Soil, Feeding & Propagation

🪨Soil

Wants well-drained, slightly acidic to neutral soil; tolerates poor and rocky ground but turns chlorotic and rot-prone in wet or heavy clay.

💧Drainage

Needs well-drained soil.

🌱Nutrient Needs

Moderate feeder.

🌰Propagation

Semi-hardwood or hardwood cuttings; disturb the brittle root ball as little as possible when transplanting.

📐Spacing

5-8 ft apart against a wall (15-20 ft mature spread)

🌳Roots & Placement

Fragile, easily disturbed root ball resents transplanting; roots are not invasive, but large thorns and heavy bract litter dictate placement away from pools and paths.

Placement Tips

•Train against a hot south- or west-facing wall or sturdy trellis where reflected heat drives bloom.
•Keep thorny canes away from pool decks, walkways, and seating; high litter makes it a poor poolside choice.
•Disturb the fragile root ball as little as possible when planting to avoid setback.
•Give it the hottest, sunniest spot available and lean watering for maximum color.