trefle.io · Taken Jan 1, 2022 by Petr Harant (cc-by-sa)
Asteraceae
Common fireweed
Senecio vulgaris
Also known as Rosebay willowherb, Great willowherb, Fireweed, Senecio vulgaris var. villosus
Zones 4–10Sun Full SunWater ModerateCare Low
Native Plants · Wildflower · Asteraceae · Yellow Flowers · Fast Growing · Adaptable · Naturalized · Weedy · Annual · Self Seeding · Low Care
Pet-safeBeginner-friendlyAttracts pollinators
Currently out of stock everywhereStock updated 9/6/2026
This adaptable annual or short-lived perennial grows easily in most conditions with minimal care. Water regularly during dry periods and deadhead spent flowers to encourage continued blooming.
Growing conditions
The details behind the basics
- Daily light
- 6 hours
- Watering
- Water moderately when soil feels dry to touch · Every 5-7 days
- Maintenance
- Low
- Soil
- sandy loam
- Soil pH
- 5–8.5
- Temperature
- -30°F to 95°F
- Cycle
- Perennial
- Propagation
- Seed
Hardiness
USDA 4a-10b
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Form & growth
Mature size and habit
- Mature height
- 2 ft – 5 ft
- Spread
- 16 in
- Spacing
- 8 in apart
- Growth rate
- Fast
- Root depth
- Deep
- Flowers
- No
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Afghanistan, Alabama, Alaska, Albania, Alberta, Algeria, Altay, Amur, Arizona, Assam, Austria, Azores, Baleares, Baltic States, Belarus, Belgium, Bermuda, Bolivia, British Columbia, Bulgaria
- Attracts
- Bees, Butterflies
Sources: trefle, usda
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