Fireweed

Epilobium angustifolium

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verifiedReviewed by the GreenScout Team

A vigorous perennial with tall spikes of magenta-pink flowers that bloom throughout summer, reaching 3–6 feet in height. Named for its tendency to colonize disturbed and burnt areas, it spreads rapidly via seeds and rhizomes in open, moist locations. The narrow, lance-like foliage provides a delicate texture, and autumn color is attractive.

Common Problems

Select the problem your Fireweed is experiencing to get a treatment guide.

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Underwateringchevron_right

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Boltingchevron_right

Care Guide

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Light

Full sun to partial shade (4+ hours of sun preferred)

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Water

Moderate to high; keep soil consistently moist. Tolerates wet soils.

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Soil

Fertile, moist, well-draining soil. Adapts to poor soils.

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Fertiliser

Moderate fertilizer in spring; fertile soils support vigorous growth.

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Temperature

Hardy perennial; thrives in cool to temperate climates.

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Humidity

Moderate to high; prefers moist environments.

Toxicity

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Non-toxic; young shoots are edible and used in some cuisines.

Common Diseases

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Common Pests

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Seasonal Care

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Resume regular watering and feeding as growth picks up.

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Peak growing season. Water and feed regularly.

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Reduce watering as growth slows. Stop heavy feeding.

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Minimal watering and feeding. Protect from frost if needed.

Frequently Asked Questions

Why is it called Fireweed?

It's named for its tendency to colonize disturbed and burnt areas, spreading rapidly via seeds and rhizomes to be among the first plants to recolonize open, moist ground.