Eucalyptus Coolibah

Eucalyptus microtheca

Light
Water
Water deeply and regularly during establishment, allowing soil to partially dry between irrigations. Once established, water deeply but infrequently; supplemental summer irrigation supports a fuller canopy in Phoenix.
Description
Heat-tolerant Australian shade tree commonly called coolibah, with narrow gray-green leaves, rough gray-brown bark, and an airy canopy well suited to large Phoenix landscapes.
Bloom Time
Deciduous / Evergreen
Growth Rate
Flower Color
Foliage Color
Toxic to pets & humans if ingested
Care Instructions

Light: Full sun.

Water: Water deeply and regularly during establishment, allowing soil to partially dry between irrigations. Once established, water deeply but infrequently; supplemental summer irrigation supports a fuller canopy in Phoenix.

Soil: Adaptable to sandy, loamy, or clay soils, including moderately alkaline soils. Good drainage is preferred; avoid persistently saturated planting sites.

Mature size: Typically 40–60 feet tall and 25–40 feet wide; size varies with water availability and growing conditions.

Bloom: Small flowers generally appear in late spring to summer; timing varies with weather and irrigation.

Evergreen / deciduous: Evergreen.

Growth rate: Moderate to fast, especially with supplemental irrigation.