Canada Bluejoint
Calamagrostis canadensis
Last reviewed: July 2026
Calamagrostis canadensis (Canada Bluejoint) is a native grass widespread across North America that blooms June through August. This moisture-loving perennial thrives in wetlands and adapts to various light conditions.
The USDA PLANTS Database (opens in new tab) does not flag Canada Bluejoint as toxic to livestock.
Light
part sun
Water
high
Size
24"–60" H × 12"–24" W
Bloom
Jun, Jul, Aug
Native to
AZ, CA, CO, CT and 36 more states
Pollinators
bees, beetles
Deer
Resistant (per Prairie Moon Nursery)
Browse plants for this ecoregion
Canada bluejoint is a tall native grass that forms upright clumps with feathery flower plumes in summer. It thrives in moist conditions and can spread gradually through rhizomes. This robust grass works well in naturalized areas but needs consistent moisture to look its best.
Growing Canada Bluejoint
Grow Canada Bluejoint in part sun and high water. Mature plants reach 24 to 60 inches tall and spread 12 to 24 inches wide. Expect moderate maintenance to keep it looking intentional in a front yard.
In an HOA neighborhood
Canada Bluejoint takes more care to keep looking intentional in a front yard. Maintenance level: moderate. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Very tall height may violate landscaping ordinances
- Can look unkempt without regular maintenance
- May spread beyond intended boundaries
Wildlife value
The summer flowers attract bees and beetles, while the seeds provide food for birds. The dense clumps offer nesting habitat and shelter for small wildlife.
Common questions
- Where does Canada Bluejoint naturally grow?
- Canada Bluejoint is native to most U.S. states from coast to coast, including wet meadows, marshes, and streambanks across northern and western regions.
- When does Calamagrostis canadensis bloom?
- Canada Bluejoint produces its grass flowers from June through August, creating feathery seed heads that persist into fall.
- What pollinators visit Canada Bluejoint?
- Bees and beetles are attracted to Canada Bluejoint flowers, though as a wind-pollinated grass, it relies primarily on wind for reproduction.
- What growing conditions does Canada Bluejoint prefer?
- This grass thrives in consistently moist to wet soils and tolerates full sun to partial shade, making it excellent for rain gardens and wetland restoration.
- Is Canada Bluejoint toxic to livestock?
- The USDA PLANTS Database does not flag Canada Bluejoint as toxic to livestock.
- Is Canada Bluejoint HOA-friendly?
- Canada Bluejoint takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.
Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Ready to grow Canada Bluejoint? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
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