Fireweed

Fireweed

Chamaenerion angustifolium

Plant Type
Forb (Deciduous)
Landscape Layer
Herb
Sun
☀️ Full Sun, ⛅ Part Sun, ☁️ Shade
Moisture
💧 Regular
Soil
Clay, Loam, Sand, Rocky / Acidic, Organic / Peat, Calcareous
Bloom
July, August, September
Sociability
S4 – Large patches

Pollinator Value

🐝 Specialist Bee Host
Megachile lapponica

S17 specialist on Chamaenerion

Ecology & Conservation

Proximity Score
0
Native Status
❌ Outaouais ❌ Ottawa ✅ QC ✅ ON
Closest Direction
Local
CEC Eco-Regions
5 – Northern Forests, 5.2 – Mixed Wood Shield, 5.2.3 – Algonquin/Southern Laurentians
Rarity Notes
Globally secure (G5) and nationally secure in Canada (N5). Not listed under SARA. Ranked S5 in Ontario and SNR in Quebec. Widespread across North America with massive specimen collections in both provinces.

S22 S26 S48

Rarity Ranks
QC SNR – Not Ranked, ON S5 – Secure
Migration
Stable
Ecological Context
Fireweed is a classic pioneer of disturbed habitats across the boreal and northern temperate zones. It thrives on burned-over ground, clearings, roadsides, gravel pits, and woodland edges. In the Ottawa Valley region, it occurs in dry forests of aspen and jack pine, open fields, upper shores, and rocky ground, frequently colonizing recently burned areas where it blooms profusely within months of fire. It also grows in rather wet places including old sphagnum bogs. The species is common throughout Ontario with 65 preserved specimens from ecoregion 5.2.3 alone.

S7 S48

Permaculture & Companion Planting

Roles
Pollinator Attractor

S73/S29/S72 Evidence: Pollinator Attractor: S73 [MEDIUM]: S68 94 bee associations (threshold=3)]

Notes
Fireweed pairs well with early-successional grasses and forbs in restoration plantings. Its vigorous rhizomatous spread and pioneer colonizing behaviour make it useful for stabilizing disturbed soils alongside native grasses. Tolerates juglone conditions, enabling planting near black walnut.

S3 S29

Medicinal Properties

Always consult a qualified healthcare provider before using any plant for medicinal purposes. The information provided is compiled from secondary sources for educational purposes only.

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Category
Antispasmodic, Astringent, Demulcent, Emollient, Anti-inflammatory, Laxative

S29 multiple medicinal categories documented

Notes
Used in traditional herbal medicine as an antispasmodic, astringent, demulcent, emollient, and laxative. In Germany and Austria, the plant is used to treat prostate problems. A poultice of leaves is applied to mouth ulcers, and leaf extracts show anti-inflammatory activity. Tea from leaves and roots is a folk remedy for dysentery and abdominal cramps. Health Canada lists it as an approved herbal medicinal ingredient.

S29 S36

Edibility & Foraging

Never ingest a plant unless you have 100% certainty of its identity and have consulted multiple reputable sources. The information provided in the Localeaf Plant Database is compiled from secondary sources for educational and historical purposes only.

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✅ Edible   

Foraging Notes
Multiple parts are edible but of variable quality. Young spring shoots are the most valued component, eaten raw or cooked as an asparagus substitute. Leaves can be used in salads when young. Flowers and buds are the most palatable elements. Roots are sweet in spring but often fibrous. A tea made from dried leaves (kaporie tea) is traditional in Russia. Oxalates in leaves may cause mild irritation when eaten raw.

S29

Seed Source

  • Localeaf (Lacasse)
  • OWSL
Fireweed