Why Jacaranda Trees Drop Leaves in Winter: Semi-Deciduous Nature Explained

Normal Behavior

Jacaranda (Jacaranda mimosifolia) is semi-deciduous. In San Diego, leaf drop in February (even at 72°F) is typical. The canopy is naturally open and "wispy"—a thin crown is not a defect.

Cultural Needs for Better Bloom

• Soil: Sandy, well-drained.
• Water: Regular deep watering; avoid waterlogged roots.
• Fertilizer: Apply a balanced slow-release fertilizer in early spring.
• Wind: Protect from ocean breezes; salt damages foliage.

Troubleshooting

If neighbors' jacarandas also bloom poorly, it's a climate/soil issue. If theirs thrive, compare irrigation, soil, and sun exposure. Four-year-old trees should be approaching peak bloom.