Practical
Plants

Cirsium suffultum

Tsukushi-Azami

a perennial member of the Cirsium genus in the family Compositae.

No photo available

Taxonomy and growth

Genus
Cirsium
Life cycle
perennial
Height
1 m
Fertility
Insects
Flower type
hermaphrodite
Pollinators
Insects

Uses

Edible uses

This section contains historical Plants For A Future notes marked noncommercial.

Root - cooked[2]. 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].

Plant part
Root

Material uses

This section contains historical Plants For A Future notes marked noncommercial.

The seed of all species of thistles yields a good oil by expression[5]. No details of potential yields etc are given[K].

Product or use
Oil

Environment

Range
E. Asia - S. Japan.
Habitat
In sunny grasslands of temperate zones at elevations of 600 - 1700 metres[4].
Light
full sun
Shade tolerance
no shade
Water
moderate
Soil textures
sandy, loamy, clay
Soil pH
acid, neutral, alkaline
Tolerates Nutritionally Poor Soil
No
Drought
intolerant

Propagation

This section contains historical Plants For A Future notes marked noncommercial.

Seed - sow early spring or autumn in situ. Germination usually takes place within 2 - 8 weeks at 20°c[1]. Division in spring or autumn.

Cultivation

This section contains historical Plants For A Future notes marked noncommercial.

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 at least in the milder 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[3].

References

  1. Bird. R. (Editor) Growing from Seed. Volume 4. Thompson and Morgan. 1990-00-00

    ↩

  2. Kunkel. G. Plants for Human Consumption. Koeltz Scientific Books 1984-00-00 ISBN 3874292169

    ↩

  3. Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press 1992-00-00 ISBN 0-333-47494-5

    ↩

  4. Flora of Japan www.foj.info

    ↩

  5. Grieve. A Modern Herbal. Penguin 1984-00-00 ISBN 0-14-046-440-9

    ↩

Edit this page