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Established 1908

Green Ash   arrow

Fraxinus pennsylvanica

Scientific NameFraxinus pennsylvanica
Common NameGreen Ash
FamilyOleaceae (Olive)
HabitDeciduous Tree. Slightly pyramidal, upright with
a rounded crown.
Growth FormGrowth Rate: Moderate to Fast. Green ash has
a large leaf up to 12″ long with five to nine
leaflets. Leaves are medium to dark green and
become yellow in the fall.
Mature SizeHeight: 50-80′ Width: 50-70′
FlowersBloom Dates: March – May. Clusters of small
male and female flowers bloom on separeate
plants before leafout. Female trees producetan,
single-winged seeds. The resulting seedings
unfortunately become invasive and weedy.
Planting male cultivars will eliminate seed
HardinessZones 3-9
Sun RequirementsFull Sun
Water Requirements 
Soil RequirementsWell drained soils. Tolerates a wide range of soil
Other InfoNative habitat: Nova Scotia to Manitoba, south
to Texas and northern Florida. Pruning to
correct poor form and weak branch unions is
necessary in young green ash trees. The tree
should be pruned in the fall. Potential problems
incljude leaf spots, cankers, ash flower gall and
fall webworm.