USDA: 11-12
Frost Tolerance: Keep above 50°F (10°C)
Sun Exposure: Full sun to light shade
Origin: Southern coastal plain of Madagascar
Growth Habits: Tree, up to 16 feet tall (5 m), stems have thorns, 0.2 to 1 inch long (0.5 to 2.5 cm), leaves 0.6 inches long (1.5 cm)
Watering Needs: Little to no water from November to March
Propagation: Cuttings, seeds
Also spelled 'humbertii'.
Blooming Habits:
Small flowers
Culture:
Can be trimmed severely to keep in a container.
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