Bougainvillea Layering: Fall Greenhouse Propagation in Zone 7

Air Layering Alternative for Bougainvillea in Heated Greenhouse

Layering is highly effective for bougainvillea and works well in a heated greenhouse in Northern Virginia (Zone 7).

Simple Layering Method

1. Select long, low branch
2. Scrape bark on 1-inch section (wound)
3. Bury wounded section in pot of moist potting soil
4. Weight with rock to maintain contact
5. Roots form in ~8 weeks
6. Sever from mother plant; pot up

Fall vs. Spring

Fall works if greenhouse is heated (maintains 70°F+). Unheated greenhouse = wait for spring. Bougainvillea roots slowly in cool conditions.

Advantage Over Cuttings

Layered plants maintain connection to mother plant's vascular system during rooting—higher success, larger initial plant.