The Temperate Database is in the process of being updated, with new records being added and old ones being checked and brought up to date where necessary. This record has not yet been checked and updated.
Common Name: White Thistle
Cirsium hookerianum is a Biennial/Perennial up to 1.50 metres tall.
It has edible and miscellaneous uses.
Western N. America - British Columbia to Alaska and south to Washington.
Moist bottoms, open rocky slopes and cultivated fields[
]. Moist soil, grasslands, aspen parkland, forest edges and openings, subalpine, alpine meadows at elevations of 600 - 2900 metres[
|Pollinators||Bees, Flies, Lepidoptera, Beetles, Self
We have very little information on this species and do not know if it will be hardy in Britain, though judging by its native range it should succeed outdoors in many parts of this country. It is a short-lived perennial[
A monocarpic species, it grows for one or more years without flowering, but then dies after flowering the following year[
]. The following notes are based on the general needs of the genus.
An easily grown plant, succeeding in any ordinary garden soil in a sunny position[
Root - cooked[
]. Boiled as a vegetable, or added to soups and stews[
]. It can also be dried and stored for later use[
]. 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[
The seed of all species of thistles yields a good oil by expression[
]. No details of potential yields etc are given[
Seed - sow early spring or autumn in situ. Germination usually takes place within 2 - 8 weeks at 20°c[