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Calamagrostis canadensis

Also called Canadian Reedgrass, Marsh Reedgrass

Calamagrostis canadensis - Canada Bluejoint

More About Calamagrostis canadensis

  • This grass has a slightly arching upright habit
  • Spreads more quickly than other calamagrostis species
  • Leaves are rough with tiny hairs and bluish-green in colour
  • Large airy inflorescences emerge purple, changing to golden-tan
  • Foliage and flowers dry and persist through the fall and winter
  • Bloom Time: June to August
  • Flower Height: 150 cm
  • Foliage Height: 100 cm
  • Grass type: Cool season

Interesting Notes:

Native to Ontario and most of North America

Cool Season Grasses: These grasses do the majority of their growing in early spring and start again when temperatures start to cool in the fall. During the warmer summer months, they stop growing and some will even go dormant. Cool season grasses flower in the spring or early summer. Most cool season grasses grow best in a consistently moist soil.




100-150 cm


80-120 cm


Purple (pale)

Canada Bluejoint Growing and Maintenance Tips

Calamagrostis canadensis grows in full sun to full shade in a range of soil types. Prune foliage to ground level in the spring to make way for new growth. When given adequate moisture, this grass can spread quickly by rhizomes. Prune rhizomes in the spring to control growth.

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Calamagrostis canadensis Characteristics

Full Sun
Full Sun
Partial Sun/Shade
Partial Sun/Shade
Full Shade
Full Shade
Attracts Birds
Attracts Birds
Deer Resistant
Deer Resistant
Drought Tolerant
Drought Tolerant
Low Maintenance
Low Maintenance
Native to Ontario
Native to Ontario
Dried Flower/Foliage
Dried Flower/Foliage
Long Blooming
Long Blooming

Soil Moisture

Average to Dry Soils
Moist to Average
Moist to Wet Soils

Flowering Time

Lt. Spr-Sum



Foliage Color


Landscape uses

Foundation planting
Woodland/woods edge

 Suitable Substitutions for Calamagrostis canadensis

Get more info on Calamagrostis stricta

Calamagrostis stricta

Neglected Reed Grass

Get more info on Deschampsia cespitosa

Deschampsia cespitosa

Tufted Hair Grass

Get more info on Sporobolus heterolepis

Sporobolus heterolepis

Prairie Dropseed