Cirsium Species, California Swamp Thistle, Douglas' Thistle
Cirsiumdouglasii

Family: Asteraceae (ass-ter-AY-see-ee)
Genus: Cirsium (SIR-see-um)
Species: douglasii (dug-LUS-ee-eye)

Synonym:Cirsium breweri var. wrangelii

Category
Annuals

Water Requirements

Sun Exposure
Full Sun

Foliage

Foliage Color

Height

Spacing

Hardiness
Not Applicable

Where to Grow

Danger
Plant has spines or sharp edges; use extreme caution when handling

Bloom Color
Medium Purple
White/Near White

Bloom Characteristics

Bloom Size

Bloom Time

Other details

Soil pH requirements

Patent Information

Propagation Methods

Seed Collecting