Canadian fleabane
Erigeron canadensis · Asteraceae
The gardener's calendar
Ideal time to plant canadian fleabane: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Family
- Asteraceae
- Type
- Annual or biennial herb
- Mature height
- 60 to 120 cm tall
- Flowering
- July to October
- Foliage
- Deciduous
- Hardiness
- Very hardy, tolerates down to -15 °C
- Growth
- Fast
- Origin
- North America
Care
Exposure
Plant your Canadian fleabane in full sun or partial shade for optimal flowering. This plant tolerates sunny locations well and even helps cover unfavorable areas. It adapts to almost all exposure types.
Watering
Water regularly during the first year of establishment, then the plant becomes very self-sufficient and tolerates drought well. During prolonged summer periods, a weekly watering is sufficient. Avoid excess moisture which could promote rot.
Soil and potting mix
Canadian fleabane adapts to all soil types, even poor, rocky or chalky ones. It prefers well-drained soil but tolerates dry and compacted ground. No special enrichment is necessary.
Pruning and cutting
Prune lightly in spring to encourage bushy, compact growth. You can remove faded flowers to extend flowering and prevent excessive seed dispersal if the plant tends to self-seed.
Fertilization
No fertilizer is really necessary; this pioneer plant is content with soil nutrients. A light application of balanced fertilizer in spring can improve vigor, but it's not essential.
Diseases and pests
Fleabane is generally very robust and rarely subject to diseases. Watch for whiteflies or aphids in case of intensive cultivation, but interventions are seldom necessary. In the garden, it shows great resilience.
Did you know?
Canadian fleabane is an essential pioneer plant: it has rapidly colonized wasteland, rubble and abandoned wasteground in Europe since the 17th century, where it naturalized after being imported from the American continent. Its scientific name Erigeron canadensis literally means "which ages quickly," because its seeds disperse very easily by wind and its presence often indicates recent soil disturbance.
Where to buy it
Plant in spring or early autumn, avoiding spells of intense heat. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, April, May, September.
Add this plant to my garden →Plants from the same family
- SunflowerHelianthus annuus
- YarrowAchillea millefolium
- Ox-eye daisyLeucanthemum vulgare
- SneezewortAchillea ptarmica
- Canadian goldenrodSolidago canadensis
- WormwoodArtemisia absinthium
Tips generated and checked by Viridia — adapt them to your local climate.