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Canada Thistle

Cirsium arvense

Asteraceae · herbaceous · introduced

Last updated

Data Coverage 1 of 6 dimensions
Site Data
Threats
Cultivars
Phenology
GDD Thresholds
Puget Sound

Quick Facts

Growth Rate
Rapid
Light
Full Sun to Part Shade
Soil
Moist, Dry Tolerant, Drought Tolerant
Hardiness
Zone Zones 4–7
Bloom Time
summer
Origin
Europe and Asia