Fireweed vs Slimstem Reedgrass - TreeTime.ca

Fireweed vs Slimstem Reedgrass

Calamagrostis stricta

Chamaenerion angustifolium (Epilobium angustifolium)

CUSTOM GROW

CUSTOM GROW

Slimstem Reedgrass
Fireweed

Slimstem Reedgrass is a native perennial bunchgrass commonly found in damp meadows, wetlands, and along streams and lakeshores. It thrives in wet, nutrient-poor soils and shows some tolerance to saline conditions. Typically a bunchgrass, it can also spread by rhizomes to form colonies, making it well-suited for soil stabilization, riparian zone planting, and wetland restoration projects.

Slimstem Reedgrass provides valuable cover for small animals and birds, and its dense growth can even serve as nesting habitat for waterfowl in wetland areas. Its seeds offer forage for wildlife, while the tall stems and floral spikes add texture and visual interest to the landscape.

Fireweed is a native perennial wildflower known for its tall spikes of bright pink to purple blooms. Its long-lasting summer flowers are an important nectar source for pollinators such as bees, butterflies, and hummingbirds, while its seeds provide food for birds. Its showy, long-lasting display makes it visually striking in naturalized plantings.

Fireweed gets its namesake because it is often one of the first species to return after wildfires, supporting ecosystem recovery. Its wind-dispersed seeds allow it to spread readily, making it highly effective in large-scale restoration, revegetation, and naturalization projects.
Fireweed is the Provincial Flower of the Yukon.

Slimstem Reedgrass Quick Facts

Fireweed Quick Facts

Zone: 2a
Zone: 1a
Height: 0.9 m (3 ft)
Height: 1.2 m (4 ft)
Spread: 0.6 m (2.0 ft)
Spread: 0.6 m (2.0 ft)
Light: partial shade, full sun
Light: partial shade, full sun
Moisture: normal, wet
Moisture: normal, wet
Growth rate: fast
Growth rate: fast
Life span: short
Life span: short
Growth form: upright, clump-forming
Growth form: upright, dense, colony-forming
Spreading: rhizomes - high, seeds - low
Spreading: seeds - high, rhizomes - high
Maintenance: medium


Flowers: pink-purple spikes
Bloom time: mid summer to fall
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, YT, NT, NU, PE
Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, YT, NT, NU, PE
Other Names: narrow reedgrass, narrow-leaved reed grass, narrow-spiked reedgrass, slim-stemmed reedgrass
Other Names: fire weed, great willowherb, rosebay willowherb, willow herb