Black Ash

Fraxinus nigra

Physical Characteristics

Fraxinus nigra is a deciduous Tree growing to 25 m (82ft 0in) at a medium rate. See above for USDA hardiness. It is hardy to UK zone 7 and is not frost tender. The species is dioecious (individual flowers are either male or female, but only one sex is to be found on any one plant so both male and female plants must be grown if seed is required). and is pollinated by Wind. The plant is not self-fertile. Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It cannot grow in the shade. It prefers moist or wet soil. The plant can tolerates strong winds but not maritime exposure. It can tolerate atmospheric pollution.

Distribution

North-eastern N. America - Newfoundland to Manitoba, south to Virginia and Iowa.

Habitats

Woodland Garden Canopy; Bog Garden;

Edible Uses

None known

Medicinal Uses

Diaphoretic Diuretic Laxative Ophthalmic Tonic The leaves are diaphoretic, diuretic, laxative[4]. They should be gathered in June, well dried and stored in airtight containers[4]. The inner bark has been used as a tonic for the liver and stomach, to check vaginal discharge and to treat painful urination[257]. An infusion of the inner bark has been used as an eye wash for sore eyes[257].

Known Hazards

None known