Why Your Morning Glory Won't Bloom: Sun, Soil, and Variety

Lisa planted invasive morning glory in spring. Large plant no blooms, took over fence/lilac, constant cutting. Smaller plant moved to new location bloomed but stayed small.

Key Factors

1. Sunlight: Needs ≥6 hours direct sun. Check exposure of large plant; prune nearby vegetation to increase light.
2. Soil nitrogen: Too much nitrogen → leaves over flowers. Add phosphorus (middle fertilizer number) to jump-start blooming.
3. Variety: Some (e.g., 'Heavenly Blue') are naturally late bloomers (up to 120 days).

Culture Preferences

Morning glories prefer "poor" soil. Avoid excess fertilizer and water.