Holodiscus dumosus

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Holodiscus dumosus
Light:Full Sun Part Shade
Moisture:Xeric Mesic
Hardiness:4
Soil pH:5.6-8.4
Height:15'
Blooms:Mid Summer
Native to:
Edible Rating:PFAF Edibility Rating
Medicinal Rating:PFAF Medicinal Rating
Tea:Yes
Poisonous

Holodiscus dumosus (common name: rock spiraea)

Propagation: The seed requires 4 months stratification at 4°c. It is best sown as soon as it is ripe in a cold frame. Stored seed should be sown as early in the year as possible. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for at least their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts.

Cuttings of half-ripe wood with a heel, July/August in a frame. Can be difficult[1].

Layering in spring. Easy[1].

Cultivation: Succeeds in a good loamy soil that does not become too dry in summer[2] in full sun or light shade[1].

Plants are hardy to about -15c[1].

Range: Western N. America - Wyoming to Texas, Arizona and New Mexico.

Habitat: Dry rocky desert valleys and hillsides well up into the mountains[3].

Edibility: Fruit - raw or cooked[4][5]. Small and dry[6].

The leaves can be steeped in water to make a tea[7].

Medicinal: A decoction of the root has been used in the treatment of diarrhoea and stomach disorders[7].

A decoction of the stems has been used in the treatment of colds and stomach disorders[7].

A decoction of the flowers, leaves and stems has been used as an antiseptic wash[7].

Pollinators: Insects

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

Drainage: Prefers well drained soil.

Seed Ripens: Mid Fall

Flower Type: Hermaphrodite

Also Known As: H. discolor dumosus. Sericotheca dumosa. Spiraea dumosa.

Links

References

  1. 1.0 1.1 1.2 1.3 Huxley, Anthony. The New Royal Horticultural Society Dictionary of Gardening. MacMillan Press, 1992.
  2. Chittendon, Fred. RHS Dictionary of Plants. Oxford University Press, 1951.
  3. Hitchcock, Leo. Vascular Plants of the Pacific Northwest. University of Washington Press, 1955.
  4. Tanaka, Tyōzaburō. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing, 1976.
  5. Kunkel, Günther. Plants for Human Consumption. Koeltz Scientific Books, 1984.
  6. Yanovsky, Elias. Food Plants of the North American Indians Publication 237. US Department of Agriculture.
  7. 7.0 7.1 7.2 7.3 Moerman, Daniel. Native American Ethnobotany. Timber Press, 1998.