White Ash

(fraxinum americana)

White ash (Fraxinus americana), also called Biltmore ash or Biltmore white ash, is the most common and useful native ash but is never a dominant species in the forest. It is a tall, straight tree with a conical or rounded crown of foliage. The white ash has compound leaves that are made up of 5 — 9 (usually seven) leaflets.

It grows best on rich, moist, well-drained soils to medium size. Because white ash wood is tough, strong, and highly resistant to shock, it is particularly sought for handles, oars, and baseball bats. The winged seeds provide food for many kinds of birds.

White ash grows naturally from Nova Scotia to northern Florida in the east, and eastern Minnesota south to eastern Texas at the western edge of its range.

White ash has demanding soil fertility and soil moisture requirements. These requirements may be provided by soils derived from a variety of parent materials-limestone, basalt, shale, alluvium, and fine glacial till. A large number of soil types may support white ash.

White ash grows most commonly on fertile soils with a high nitrogen content and a moderate to high calcium content. Nutrient culture results show that an absence of nitrogen reduces seedling dry weight by 38% compared to seedlings grown in complete nutrient solution, and that calcium is the second most important macro element, followed by sulfur. Its pH tolerance varies from 5.0 — 7.5.

Flowering and Fruiting- White ash is dioecious; flowers appear with or just before the leaves in April and May. A good seed crop is produced about every third year. The time between the first noticeable enlargement of the male flower buds until shedding is 2 — 3 weeks. Pollen shedding from an individual tree usually takes 3 — 4 days. The pollen is carried by wind as far as 328' from the point of dispersion.

Potential Problems - Among the common ash trees, White Ash is the most likely to encounter a problem during its lifetime, although most trees live a long and healthy life. Borers and scales are occasional pests, leaf anthracnose is a frequent cosmetic disease of the leaves when wet springs occur, and trunk canker is an occasional disease of the bark and cambium.


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	>>Home > White Ash (fraxinum americana) White ash (Fraxinus americana), also called Biltmore ash or Biltmore white ash, is the most common and useful native ash but is never a dominant species in the forest. It is a tall, straight tree with a conical or rounded crown of foliage. The white ash has compound leaves that are made up of 5 — 9 (usually seven) leaflets. It grows best on rich, moist, well-drained soils to medium size. Because white ash wood is tough, strong, and highly resistant to shock, it is particularly sought for handles, oars, and baseball bats. The winged seeds provide food for many kinds of birds. White ash grows naturally from Nova Scotia to northern Florida in the east, and eastern Minnesota south to eastern Texas at the western edge of its range. White ash has demanding soil fertility and soil moisture requirements. These requirements may be provided by soils derived from a variety of parent materials-limestone, basalt, shale, alluvium, and fine glacial till. A large number of soil types may support white ash. White ash grows most commonly on fertile soils with a high nitrogen content and a moderate to high calcium content. Nutrient culture results show that an absence of nitrogen reduces seedling dry weight by 38% compared to seedlings grown in complete nutrient solution, and that calcium is the second most important macro element, followed by sulfur. Its pH tolerance varies from 5.0 — 7.5. Flowering and Fruiting- White ash is dioecious; flowers appear with or just before the leaves in April and May. A good seed crop is produced about every third year. The time between the first noticeable enlargement of the male flower buds until shedding is 2 — 3 weeks. Pollen shedding from an individual tree usually takes 3 — 4 days. The pollen is carried by wind as far as 328' from the point of dispersion. Potential Problems - Among the common ash trees, White Ash is the most likely to encounter a problem during its lifetime, although most trees live a long and healthy life. Borers and scales are occasional pests, leaf anthracnose is a frequent cosmetic disease of the leaves when wet springs occur, and trunk canker is an occasional disease of the bark and cambium. Read also: Emerald Ash Borer

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White Ash