Cirsium yezoense
Family: Asteraceae or Compositae
What it is like
Cirsium yezoense is a PERENNIAL growing to 2 m (6ft 7in). It is in flower from September to October, and the seeds ripen from September to October. The species is hermaphrodite (has both male and female organs) and is pollinated by Insects. Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.
Height (m): 2
Where it is found
Woods, C. and N. Japan. Along streams and in and along temperate forests at elevations of 100 - 1000 metres.
E. Asia - Japan.
Conservation Status:
Countries/locations it is found in
How it is used
Food
Rating: 1
Young plant - cooked.
Oil: Oil
Medicine
Rating: 0
Other
Rating:
The seed of all species of thistles yields a good oil by expression. No details of potential yields etc are given.
Oil: Vegetable oils have many uses, as lubricants, lighting, soap and paint making, waterproofing etc. This does not include the edible oils unless they are also mentioned as having other uses.
How it is grown
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 could succeed outdoors in many parts of this country. 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.
Propagating it: Seed - sow early spring or autumn in situ. Germination usually takes place within 2 - 8 weeks at 20°c. Division in spring or autumn.
Best place to grow: Woodland Garden Dappled Shade; Shady Edge;
Habit: Perennial
Hardiness:
Growth:
Soil: Light (sandy), medium, heavy (clay)
Shade: Semi-shade, no shade
Moisture: Moist