Shamel ash, a large shade tree with a straight trunk and broad dense canopy of glossy dark green leaves

Shamel Ash

Fraxinus uhdei
Categories:
Trees  ·  
Shade Trees
Light
Full sun
Water
Moderate to high water needs in Phoenix. Water deeply across the expanding root zone, allowing the upper soil to dry between irrigations. Established trees still need regular summer irrigation; avoid frequent, shallow watering.
Size
40-60 ft tall × 30-50 ft wide
Habit
Upright tree – single-trunk (spreading)
Toxicity
Non-toxic
Description
A large, fast-growing shade tree native to Mexico and Central America, with glossy compound leaves and a broad canopy. Also called evergreen ash; requires substantial irrigation in Phoenix.
Bloom Time
Spring
Deciduous / Evergreen
Semi-evergreen
Special Features
Fast Growing
Growth Rate
Fast
Growth Habit
Upright tree – single-trunk (spreading)
Mature Size
40-60 ft tall × 30-50 ft wide
Flower Color
Greenish-white
Foliage Color
Dark green
Landscape Use
Desert / Xeriscape, Shade Tree
Garden Style
Desert / Xeriscape
Soil
Alkaline Tolerant, Sandy / Rocky
Companion Plants
Lantana, Society garlic
Non-toxic
Non-toxic
Care Instructions

Light: Full sun; young trees tolerate light shade.

Water: Moderate to high water needs in Phoenix. Water deeply across the expanding root zone, allowing the upper soil to dry between irrigations. Established trees still need regular summer irrigation; avoid frequent, shallow watering.

Soil: Adaptable to sandy, loamy, or clay soils with good drainage. Tolerates some alkalinity, but highly alkaline or saline soil can cause leaf yellowing.

Mature size: Typically 40–60 feet tall and 30–50 feet wide; can grow larger under favorable conditions.

Bloom: Small, inconspicuous flowers in late winter to early spring.

Evergreen / deciduous: Evergreen to semi-evergreen in Phoenix; may briefly shed leaves in winter or lose foliage after frost.

Growth rate: Fast, often 2–3 feet per year with adequate water and favorable conditions.