⚠️
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Submit a photoCommon Tansy
Tanacetum vulgare
⚠️ NOXIOUS — a tall (1–1.5 m) Eurasian perennial with fern-like aromatic leaves and flat-topped clusters of yellow button-like flowers. Often still planted as an ornamental despite being illegal to sell. Spreads by seed and rhizome. Toxic to cattle and horses in quantity (contains thujone). A common invader of roadsides and abandoned lots across Alberta.
Quick Facts
Distribution
Widespread across Alberta
Light
Full sun
Bloom Time
July–Sept
Soil
Adaptable
Water
Moderate
Toxic to Pets— Thujone toxic to livestock and pets in quantity; mild GI upset in smaller amounts
Growing & Cultivation
Propagation
DO NOT PROPAGATE. Control: dig small patches; herbicide for larger. Remove before seed set.
Always verify plant identification with multiple sources before consuming any wild plant. This information is for educational purposes only.
