Fraxinus pennsylvanica 'Patmore'
Patmore Green Ash

Fraxinus pennsylvanica ′Patmore′ - Summer Habit

Family:

Oleaceae (Olive Family) 45

Genus:

Fraxinus (Ash) 15

Plant Type:

Tree 580

Hardiness:

USDA Zone 3 225

Deciduous / Evergreen:

Deciduous 807

Flowers:

Green (Spring; not ornamentally important)

Foliage:

Green (Lustrous, dark green summer foliage); Yellow (Variable yellow fall foliage)

Ultimate Height:

50-70 feet

Ultimate Spread:

35-45 feet

Light Requirements:

Soil:

Widely adapted to soils

Diagnostic Characteristics:

Leaves are opposite, pinnately compound, 12" long with 5-7 serrated leaflets. Petioles not grooved and are flat across top of leaf scar (vasculature still U-shaped). Bark deeply furrowed into diamond pattern.

Special Characteristics:

Bark 161

Fast Growth Rate 228

Fall Color 214

Pollution Tolerant 217

Tolerant of Poor Site Conditions 190

Shade Tree 172

Street Tree 130

Additional Information

'Patmore' is a vigorous male, seedless tree and is considered to be superior to many Green Ash cultivars, including 'Marshall's Seedles'. 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.