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Common Tansy is an aromatic perennial that spreads by seed and short underground horizontal stems.  It forms in dense patches and is toxic to animals.

Perennial weeds grow from root stalks year after year, spread by seeds and roots, and therefore the entire plant must be destroyed.

Classification:  Noxious Weed

Recognizable features:

Stem: Several stems in a cluster, branched, up to 2 meter tall

Leaves: Alternate, deeply divided into toothed segments

Flowers: Small yellow flowers grouped into button-like heads, 1 cm wide, 20 – 200 flower heads per plant arranged in a flat topped cluster

Green Oasis offers a variety of weed control services to help you get rid of those pesky weeds including 3 lawn care packages.

Contact your local office to learn more:

Calgary:                                                                Red Deer:

Tel:  403-206-9900                                             Tel:   403-358-3339


Information compliments of Agricultural Industry, AAA Fieldmen, Environment, Health & Safety Handbook

For more information on Common Tansy, check out this fact sheet issued by the Alberta Invasive Species Council at – Common Tansy Fact Sheet.