Why Bougainvillea Stops Blooming After Transplant: Nitrogen, Pruning & Water

Your bougainvilleas dropped all flowers after planting in Delray Beach, and 6 months later — lush growth, zero blooms. Three fixes:

1. Stop High-Nitrogen Inputs

Lawn fertilizer runoff (high N) = leaves, not flowers. Bougainvillea needs lean soil. Side-dress with composted manure instead — low N, high P/K for blooming.

2. Prune Less, Time It Right

Blooms form on new growth. Constant trimming removes flowering wood. Prune once after a flush finishes (6–8 week cycles), then let it grow. Hard prune only in early spring.

3. Water Weekly, Not Twice Weekly

Established bougainvillea prefers dry feet. Overwatering suppresses bloom. Water deeply once a week if no rain; ensure sharp drainage.

Bonus: Accept the Rest Cycle

Bougainvillea blooms in 6–8 week bursts, then rests 2–4 weeks. This is normal. Don't panic during rest periods — just maintain the regimen above.

With these adjustments, color returns within one bloom cycle.