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Fireweed

Chamaenerion angustifolium

Fireweed is a resilient and fast-growing perennial that thrives in open, disturbed areas, such as those cleared by fire, logging, or construction. It reaches heights of 3 to 5 feet and features narrow, willow-like leaves that climb the stem in a spiraling fashion. From early summer to fall, it produces striking, tall spikes of bright magenta flowers that gradually bloom from the bottom up. As each flower fades, it is followed by distinctive fluffy seed heads that disperse with the wind.

Fireweed is not only a pioneer species that helps stabilize and enrich the soil in post-disturbance environments but also a critical nectar source for bees, butterflies, and hummingbirds throughout its flowering period. It prefers full sun but can tolerate partial shade and grows best in well-drained soils.

Details

Height36” - 72”
Spread24"
Bloom SeasonJuly – September
Soil Types
loamLoam
sandSand
Soil Moisture
mediumMedium
moistMoist
Sun Exposure
partSunPart Sun
fullSunFull Sun

Range Map

Available
Not available

Ecological Benefits

Maintenance Tips

  • Drought-tolerant once established but benefits from occasional watering during prolonged dry spells.
  • Deadhead spent flowers to extend blooming or allow seeds to form for natural reseeding.
  • Adapts to a variety of soil conditions, from moist to dry, but prefers well-drained soils.
  • Apply a light layer of organic mulch to conserve moisture and suppress weeds without smothering seedlings.
  • Monitor for common pests and diseases but generally, fireweed is very hardy and requires minimal care.

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