Calamagrostis canadensis - Canada Bluejoint

Canada Bluejoint

Calamagrostis canadensis

Also called Canadian Reedgrass, Marsh Reedgrass

  • 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


Purple (pale)

100-150 cm

80-120 cm

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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.

Additional Notes about Canada Bluejoint:

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.