Blue Jacaranda
Scientific Name: Jacaranda mimosifolia D.Don
Synonym: Jacaranda acutifolia, Jacaranda chelonia, Jacaranda filicifolia
Family: Bignoniaceae
Sunset®: 12, 13, 15-25, 27
USDA: 9b-10
Frost Tolerance: Young trees are frost sensitive (to 25°F, -3°C) and need protection in Phoenix on the coldest nights. Adult trees are resistant to 20°F ( -7°C)
Heat Tolerance: Resistant in Phoenix
Sun Exposure: Full sun
Origin: Brazil, Northwestern Argentina, Bolivia
Growth Habits: Deciduous or evergreen tree, 25 to 50 feet tall (7.5-15 m); twice-pinnately compound leaves, up to 18 inches long (45 cm).
Flowers: Purple or blue flowers
Watering Needs: Moderate water, needs well drained soil.
Propagation: Easily by cuttings, or seeds
The Jacarandas are impressive trees in May when covered with clusters of blue tubular flowers. The ground below them turns rapidly blue, and some gardeners might object to that quantity of litter. A variety 'Alba' with white flowers, and denser foliage, is occasionally available.
Blooming Habits:
Tubular, lavender blue, flowers, 2 inches long (5 cm), in 8 to 12 inches long clusters (20-30 cm).
Fruiting Habits:
Flattened 2-inch capsules, containing winged seeds.
Culture:
Resistant to oak root fungus.
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