Pruning Bougainvillea for Maximum Blooms in South Florida

A homeowner 30 miles south of Tampa inherited a bougainvillea that landscapers have been shearing into a hedge — resulting in almost no flowers. They want a natural, blooming plant and will stop the shearing.

The Golden Rule: Bougainvillea Blooms on New Growth

Every cut stimulates new shoots, and only new shoots produce flower bracts. Shearing the outside creates a dense shell of old wood with no blooming tips inside.

Pruning Strategy (Per BGI — Bougainvillea Growers International)

1. Hard cut at first sign of summer (late spring in FL). Cut back hard to establish structure and force vigorous new canes.
2. Regular light trimming all summer to maintain size and promote continuous new growth = continuous bloom cycles.
3. Pinch tips (by hand or shears) after each bloom cycle (every 4–6 weeks). This branches the plant, creating more flowering tips.

Additional Tips

• Soil test: UF/IFAS Extension offers affordable tests. Bougainvillea needs slightly acidic, well-drained soil and low phosphorus.
• Fertilize smart: High potassium, low nitrogen, low phosphorus. Too much N = leaves, no blooms.
• Full sun: 6+ hours direct. Shade kills flowering.
• Don't overwater: Established plants prefer dry conditions. Stress induces bloom.

First Year Recovery

Your plant may look sparse after the hard cut. Trust the process. By mid-summer, you'll have a fountain of color. And fire the shearing crew — bougainvillea is a vine/shrub, not a boxwood.