Sunset®: 10-13, 18-21, 29,30,33
USDA: 8-10
Frost Tolerance: Hardy in Phoenix to 10°F (-12°C)
Heat Tolerance: Heat resistant, tolerates reflected heat
Sun Exposure: Full sun
Origin: Southwestern USA, northern Mexico, up to 5000 feet elevation (1500 m)
Growth Habits: Deciduous shrub or small tree, fast growing to 25 feet tall (7.5 m), 20 feet in spread (6 m); shaggy bark
Watering Needs: Moderate to little water, do not overwater, needs good drainage
Little litter. The leaves drop early in winter.
Desert Catalpa (Chilopsis linearis), flower and seeds, U.S.D.A. Drawing, courtesy Hunt Institute
Blooming Habits:
The Desert Willow blooms in spring and fall. The flowers, on new wood only, remind of catalpa flowers. They vary from white to pink to lavender and purple. Since the Chilopsis bloom very early, it might be advantageous to buy one while blooming to be able to check the color.
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