Onopordum acanthium (Cottonthistle)
Botanical Information
| Family | Asteraceae |
| Genus | Onopordum |
| Species | acanthium |
| Category | Perennials |
| Origin | Native to Europe and Western Asia. |
Details
| USDA Hardiness Ref. | |
| Canada Hardiness Ref. | |
| RHS Hardiness Ref. | |
| Height | 1.5 m |
| Spread | 1 m |
| Growth | Fast |
| Flowering Period | July |
Description and Growing Information
| Notable Specimens | The A. M. Cuddy Gardens, Strathroy, Ontario, Canada. |
| Habitat | Grows best in sandy, sandy clay and calcareous soils which are rich in ammonium salts. |
Photographs
