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. |