Scientific Name: Tanacetum vulgare
Common Name: common tansy
Family Name: Asteraceae
Origin: Europe
Hardiness Zone: Zone 4: (-34 to -29 °C)
Plant Type: Herbaceous perennial, Invasive plant
Mature Size: 0.7 - 1.3m x 0.1 - 0.3m (height x width)
Habit: Stiffly upright
Form: Oval - vertical
Texture: Medium - coarse
Landscape Uses: Attract beneficial insects
Exposure: Full sun
Soil or Media: Well-drained
Leaves: Simple, Lobed, Alternate, Soft flexible, Pinnate venation, Pubescent, Lanceolate, Pinnately lobed
Flowers: Head (capitulum), Yellow, Jul-Aug-Sep
Fruit: Achene, Brown, Sep-Oct
Key ID Features:
Perennial herb 30-150cm tall, stems narrow, reddish brown, most arising from creeping rhizomes; leaves alternate, most elliptic, (4-)10-20cm long x 2-10cm wide, twice pinnately lobed, 12 pairs of main lobes with each further lobed; corymb-like cluster of 20-200 flat, yellow flower heads, each 5-13mm wide (disk florets only, ray florets absent), Jul-Sep; achenes 1-2mm long.