Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Cirsium (SIR-see-um) (Info)
Species: horridulum (hor-id-YOO-lum) (Info)
Synonym:Carduus spinosissimus
Synonym:Cirsium horridulum var. horridulum
 2 members have or want this plant for trade.
Category:
Biennials
Perennials
Height:
36-48 in. (90-120 cm)
Spacing:
12-15 in. (30-38 cm)
Hardiness:
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
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)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
Sun Exposure:
Full Sun
Danger:
Plant has spines or sharp edges; use extreme caution when handling
Bloom Color:
Pale Pink
Rose/Mauve
Pale Yellow
Purple
Cream/Tan
Bloom Time:
Mid Summer
Late Summer/Early Fall
Mid Fall
Foliage:
Herbaceous
Other details:
This plant is attractive to bees, butterflies and/or birds
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Self-sows freely; deadhead if you do not want volunteer seedlings next season
This plant may be considered a protected species; check before digging or gathering seeds
This plant is resistant to deer
Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information:
Unknown - Tell us
Propagation Methods:
From seed; direct sow outdoors in fall
From seed; stratify if sowing indoors
From seed; sow indoors before last frost
Seed Collecting:
Unknown - Tell us
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