Fraxinus pennsylvanica [sold as Urbanite®]
Urbanite Green Ash

Fraxinus pennsylvanica [sold as Urbanite®] - Bark

Family:

Oleaceae (Olive Family) 44

Genus:

Fraxinus (Ash) 15

Plant Type:

Tree 557

Growth Forms:

Upright 537

Hardiness:

USDA Zone 5 234

Deciduous / Evergreen:

Deciduous 794

Flower Notes:

Green (Spring; not ornamentally important)

Foliage Notes:

Green (Thick, leathery, glossy dark green summer foliage); Bronze (Handsome, rich bronze fall foliage)

Ultimate Height:

50 feet

Ultimate Spread:

40 feet

Light Requirements:

Soil Notes:

Widely adapted to soils

Diagnostic Characteristics:

Leaves are opposite, pinnately compound, 12" long with 5-9 leaflets (usually 7). Leaflet apex often with remote serrations. Petioles not grooved and are flat across top of leaf scar (vasculature still U-shaped). Bark deeply furrowed into diamond pattern. Urbanite tends to resemble Fraxinus americana morphologically.

Special Characteristics:

Fall Color 206

Fast Growth Rate 225

Notable Bark 161

Pollution Tolerant 217

Tolerant of Poor Site Conditions 186

Shade Tree 170

Street Tree 132

Additional Information

The Urbanite Green Ash is a broad, seedless tree with bark that seems to have some resistance to sun scald. The foliage is lustrous and leathery, turning a rich bronze in the fall. An unattractive ash flower gall (formed by mites) can develop on male flowers and persists into winter. Emerald Ash Borer is severely affecting all species of this genus. Damage can be prevented with the appropriate pesticide, but the treatment cost will eventually exceed replacement cost.