Fraxinus pennsylvanica 'Patmore' (Patmore Ash)


Botanical Information

FamilyOleaceae
GenusFraxinus
Speciespennsylvanica
Cultivar'Patmore'
Patent NumberPP04,684 issued April 7, 1981.
CategoryWoody
TypeTree (deciduous)
OriginThe species is native to Eastern and Central North America.
Ethnobotanical Uses
Disclaimer
The species is commercially used for a variety of products including tool handles, oars, garden furniture and sports equipment.
Pronunciation

Details

USDA Hardiness Zone4 - 9
USDA Hardiness Ref.
Canadian Hardiness Zone3a - 4a
Canada Hardiness Ref.
RHS Hardiness ZoneH7
RHS Hardiness Ref.
Temperature (°C)-20
Temperature (°F)-4
Height12 - 25 m
Spread5 m
GrowthFast
Flowering PeriodApril, May

Description and Growing Information

ShapeHorizontal, pointed and rounded.
LandscapeHas typically been used as a street, urban or shade tree.
PropagationBudding onto species rootstock.
CultivationFull sun in moist, fertile and well-drained soils. Prefers highly acidic, humusy and loam soil.
PestsAsh borer, lilac borer and carpenter worm. Susceptible to ash dieback.
HabitatHorticultural origin.
Bark/Stem DescriptionDevelops distinct diamond-shaped ridging on mature trees.
Leaf DescriptionOdd-pinnate compound leaves each with 5 - 9 leaflets. Oval to oblong-lanceolate leaflets that are 7 - 10 cm long.
Flower DescriptionApetulous male flowers.
Fruit DescriptionPatmore is a male cultivar, therefore no fruit is produced.
Colour DescriptionThe leaves are shiny green and turn yellow in autumn. The bark is a greyish-brown colour.
Texture DescriptionBark is medium in texture.

Photographs