Fraxinus latifolia

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Fraxinus latifolia
Light:Full Sun
Moisture:Mesic
Hardiness:6
Soil pH:5.6-8.4
Cross Pollinated
Height:66'
Blooms:Mid Spring
Open Woods Forest
Native to:
Medicinal Rating:
Tea:Yes
Poisonous

Fraxinus latifolia (common name: oregon ash)

Propagation: The seed is best harvested green - as soon as it is fully developed but before it has fully dried on the tree - and can then be sown immediately in a cold frame[1]. It usually germinates in the spring[1]. Stored seed requires a period of cold stratification and is best sown as soon as possible in a cold frame[2]. Prick out the seedlings into individual pots when they are large enough to handle and grow them on in a cold frame for their first winter. Plant them out into their permanent positions or a nursery bed in late spring or early summer of the following year.

If you have sufficient seed then it is possible to sow it directly into an outdoor seedbed, preferably in the autumn. Grow the seedlings on in the seedbed for 2 years before transplanting either to their permanent positions or to nursery beds.

Cultivation: Prefers a deep loamy soil, even if it is on the heavy side[3][2]. Most members of this genus are gross feeders and require a rich soil[4][2]. Plants succeed when growing in exposed positions[2] and also in alkaline soils[4]. They tolerate atmospheric pollution[2].

A fast growing tree for its first 75 years in the wild, it then grows slowly reaching a maximum age of 250 years[5].

This species is closely related to F. pennsylvanica[2].

Dioecious. Male and female plants must be grown if seed is required.

Range: Western N. America - Washington to California.

Habitat: Rather deep, fertile, usually moist soils in the neighbourhood of streams near the coast[6][7].

Medicinal: The pulverised fresh roots were used by some native North American Indian tribes to treat serious wounds[8][9].

A cold infusion of the twigs has been used to treat fevers[9].

The bark is anthelmintic[9].

Usage: A fairly wind resistant tree, it can be grown as part of a shelterbelt planting[2].

Wood - hard, brittle, light, coarse grained. A valuable timber tree, it is largely used for making furniture, the interiors of buildings, cooperage etc, and as a fuel[10][11][7][12].

Pollinators: Wind

Soil: Can grow in light, medium, and heavy soils.

Wind: Tolerates maritime wind exposure

Pollution: Tolerates environmental pollution.

Seed Ripens: Mid Fall

Flower Type: Dioecious

Also Known As: F. oregona.

Links

References

  1. 1.0 1.1 McMillan-Browse, Philip. Hardy Woody Plants from Seed. Grower Books, 1985.
  2. 2.0 2.1 2.2 2.3 2.4 2.5 2.6 Huxley, Anthony. The New Royal Horticultural Society Dictionary of Gardening. MacMillan Press, 1992.
  3. Chittendon, Fred. RHS Dictionary of Plants. Oxford University Press, 1951.
  4. 4.0 4.1 Bean, William. Trees and Shrubs Hardy in Great Britain. Murray, 1981.
  5. Elias, Thomas. The Complete Trees of North America. Van Nostrand Reinhold, 1980.
  6. Hitchcock, Leo. Vascular Plants of the Pacific Northwest. University of Washington Press, 1955.
  7. 7.0 7.1 Sargent, Charles. Manual of the Trees of North America. Dover, 1965.
  8. Weiner, Michael. Earth Medicine, Earth Food. Ballantine Books, 1980.
  9. 9.0 9.1 9.2 Moerman, Daniel. Native American Ethnobotany. Timber Press, 1998.
  10. Uphof, Johannes. Dictionary of Economic Plants. Weinheim, 1959.
  11. Usher, George. A Dictionary of Plants Used by Man. Constable, 1974.
  12. Hill, Albert. Economic Botany. The Maple Press, 1952.