Cirsium Species, Black Thistle, Le Conte's Thistle
Cirsiumlecontei

Family: Asteraceae (ass-ter-AY-see-ee)
Genus: Cirsium (SIR-see-um)
Species: lecontei (le-KON-tee-eye)

Synonym:Carduus lecontei

Synonym:Cirsium virginianum

Synonym:Cnicus lecontei

Category
Perennials

Water Requirements
Very high moisture needs; suitable for bogs and water gardens

Sun Exposure
Full Sun

Foliage

Foliage Color

Height
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)

Spacing

Hardiness
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)

Where to Grow

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

Bloom Color
Pale Pink
Pink

Bloom Characteristics

Bloom Size

Bloom Time
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Mid Fall

Other details

Soil pH requirements
4.5 or below (very acidic)
4.6 to 5.0 (highly acidic)

Patent Information

Propagation Methods

Seed Collecting