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Fraxinus nigra Marsh.
USDA Symbol: FRNI
USDA Native Status: Native to U.S.
Black ash is a small-canopied, medium-sized tree, 40-50 ft. tall. Branches reach upward instead of outward like white ash. Leaves are pinnately compound with leaflets that are finely serrated. Bark is scaly and flaky rather tham ridged and furrowed. Insignificant fall color.
The northernmost native ash, Black Ash takes its name from the dark brown heartwood. Baskets, barrel hoops, and woven chair bottoms are made from thin rough strips of split wood, giving rise to the other names.
Plant CharacteristicsDuration: Perennial Habit: Tree Leaf:
Green Autumn Foliage:
Green Size Class:
Bloom InformationBloom Color: White , Purple
Bloom Time: Mar , Apr
CT , DC , DE , IA , IL , IN , MA , MD , ME , MI , MN , ND , NH , NJ , NY , OH , PA , RI , VA , VT , WI , WV Canada: MB
, QC Native Distribution:
Nf. to Man., s. to VA, KY & IA Native Habitat:
Wet woods; stream banks; lake margins USDA Native Status: L48(N), CAN(N)
Growing ConditionsWater Use: High
Light Requirement: Sun , Part Shade , Shade
Soil Moisture: Moist , Wet
Soil pH: Acidic (pH<6.8)
Soil Description: Peat soils, also sandy loams.
Conditions Comments: Black ash is one of the hardiest of all hardwoods. Fast-growing and long-lived. Susceptible, like many ashes, to a wide variety of disease and insect pests; these usually are not a problem to vigorously growing trees.
PropagationDescription: Seeds may be sown outdoors after collection or stored and stratified then sown in spring.
Seed Treatment: Stratify in moist sand or perlite for 30-60 days at 41 degrees.
Commercially Avail: yes
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Record Modified: 2007-01-01
Research By: TWC Staff