Moderate water in Phoenix. Water deeply and regularly during establishment; established trees need supplemental deep irrigation during hot, dry weather. Irrigate broadly beneath and beyond the canopy, allowing soil to partially dry between waterings.
A long-lived Southern shade tree with a massive trunk, broad spreading branches, and leathery leaves. Adaptable to Phoenix heat with adequate irrigation and room for its extensive canopy and roots.
Foliage and acorns toxic to livestock in quantity (tannins)
Care Instructions
Light: Full sun; allow ample space away from buildings and overhead utilities.
Water: Moderate water in Phoenix. Water deeply and regularly during establishment; established trees need supplemental deep irrigation during hot, dry weather. Irrigate broadly beneath and beyond the canopy, allowing soil to partially dry between waterings.
Soil: Well-drained soil; tolerates sandy, loamy, or clay soils if drainage is adequate. Highly alkaline or saline soils may cause nutrient deficiencies and reduced vigor.
Mature size: Typically 40–80 feet tall and 60–100 feet wide; often smaller in Phoenix, depending on irrigation, soil, and available rooting space.
Bloom: Small, inconspicuous flowers in spring, usually March–April.
Evergreen / deciduous: Broadleaf evergreen to briefly semi-evergreen; older leaves drop as new growth emerges in spring.
Growth rate: Moderate; faster when young with adequate irrigation, slower under desert stress.