Toxic to humans and livestock
About This Species
Common tansy is often found growing in sunny, disturbed areas such as roadsides or pastures. It spreads via roots and seeds that can remain viable for up to 25 years. Common tansy is considered a noxious weed in the may regions of BC.
How to Identify
It has bright yellow, flat-topped, round flowers grow in clusters. Its foliage is dark green, and its leaves look like ferns with sharp edges. Common tansy plants range from 0.4 – 1.5 m tall and grow in clumps.
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Common tansy Factsheet
If you need advice about invasive species on your property or you are concerned about reported invasives in your local area, contact your local municipality or regional invasive species organization.
Learn about best practices
A few non-invasive alternatives to plant instead of Common tansy include:
- Yarrow (Achillea millefolium)
- Tall coneflower (Rudbeckia laciniata)
- Summer sunflower (Heliopsis helianthiodes)
- Morden Eldorado garden mum (Chrysanthemum x morifolium ‘Morden Eldorado’)
- Flat-top goldentop (Euthamia (Solidago) gramnifolia)