Cirsium edule

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Cirsium edule
Light:Full Sun
Moisture:Mesic
Hardiness:7
Soil pH:5.6-8.4
Self Pollinated
Height:7'
Blooms:Mid Summer-Late Summer
Native to:
Edible Rating:PFAF Edibility RatingPFAF Edibility RatingPFAF Edibility Rating
Tea:Yes
Poisonous

Cirsium edule (common name: edible thistle)

Propagation: Seed - sow early spring or autumn in situ. Germination usually takes place within 2 - 8 weeks at 20°c.

Cultivation: An easily grown plant, succeeding in any ordinary garden soil in a sunny position[1].

A monocarpic species, it grows for a number of years without flowering but then dies after flowering[2].

Range: Western N. America - southwards from Canada.

Habitat: Wet meadows and open woods in mountains[2].

Edibility: Root - cooked[3][4][5][6]. The root is likely to be rich in inulin, a starch that cannot be digested by humans. This starch thus passes straight through the digestive system and, in some people, ferments to produce flatulence[K].

Young stems - peeled and eaten raw[7][8][3][4]. Soft and sweet[5], they are considered to be a luxury food[6].

Young shoots - raw or cooked as greens[6]. Harvested in spring[6].

Usage: The seed of all species of thistles yields a good oil by expression[9]. No details of potential yields etc are given[K].

Pollinators: Bees, flies, lepidoptera, beetles, self

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

Seed Ripens: Late Summer-Early Fall

Flower Type: Hermaphrodite

Links

References

  1. Huxley, Anthony. The New Royal Horticultural Society Dictionary of Gardening. MacMillan Press, 1992.
  2. 2.0 2.1 Hitchcock, Leo. Vascular Plants of the Pacific Northwest. University of Washington Press, 1955.
  3. 3.0 3.1 Saunders, Charles. Edible and Useful Wild Plants of the United States and Canada. Dover Publications, 1976.
  4. 4.0 4.1 Tanaka, Tyōzaburō. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing, 1976.
  5. 5.0 5.1 Yanovsky, Elias. Food Plants of the North American Indians Publication 237. US Department of Agriculture.
  6. 6.0 6.1 6.2 6.3 Moerman, Daniel. Native American Ethnobotany. Timber Press, 1998.
  7. Uphof, Johannes. Dictionary of Economic Plants. Weinheim, 1959.
  8. Usher, George. A Dictionary of Plants Used by Man. Constable, 1974.
  9. Grieve, Margaret. A Modern Herbal. Penguin, 1984.