plant

Tansy

Tanacetum vulgare

Updated 8 Jul 2026 · AI-parsed entry

Tansy (Tanacetum vulgare) — a plant, for Full sun, Medium water. Companions: Courgette marrow, Cabbage.

What it needs & gives back

↓ Needs

Sunlightfull sun to partial shade
Watermedium

↑ Gives back

Biomassmedium to high
Pollinator_servicesattracts various pollinators

Companions

Through the year

Emergence

Emergence typically occurs after the last spring frost when soil temperatures consistently rise above 50C.

Flowering

Flowering begins in mid-summer, usually July, and continues for several weeks, triggered by lengthening days.

Senescence

Foliage begins to die back with the first autumn frosts.

Timing is relative to your local season (temperate Northern Hemisphere).

Soil interactions

Drainagewell-drained
Nitrogen fixingNo
MycorrhizalNo
Accumulatespotassium, calcium
Soil textureloam, sandy_loam
Organic matterMedium
Compaction toleranceMedium

Propagation

Methodsseed, division
Difficulty2 / 5
Establishes in~1 yr
Self-seedingModerate
Divisionspring

Wildlife & pests

Attractspollinators, beneficial_insects
Repelsants, flies, Colorado_potato_beetle, Japanese_beetle, squash_bugs, cucumber_beetles, cabbage_worms, slugs