Crop Rotation Group
Miscellaneous
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Soil
Well drained fertile soil.
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Position
Full sun to light shade.
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Frost tolerant
This hardy perennial is winter hardy to -40C (-40F).
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Feeding
None generally needed.
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Companions
-
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Spacing
Single Plants: 45cm (1' 5") each way (minimum)
Rows: 40cm (1' 3") with 90cm (2' 11") row gap (minimum)
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Sow and Plant
Start with a purchased plant, or sow tansy from seed. These vigorous plants spread and reseed, so it is best to start with only one plant, and grow it as a managed clump. Locate in a spot where you can mow around the clump to further manage its spread.
Our Garden Planning Tool can produce a personalised calendar of when to sow, plant and harvest for your area.
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Notes
Tansy is an eager spreader wherever it is grown, but it is such an aggressive reseeder in some areas that it is listed as a noxious weed.
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Harvesting
Harvest leaves when needed, and expect flower clusters in late summer. Cut back plants close to the ground in early spring.
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Troubleshooting
Tansy leaves can cause contact dermatitis in sensitive people, and the plants are poisonous to some animals when eaten.
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