North America Native Plant

Bluejoint

Botanical name: Calamagrostis canadensis var. langsdorffii

USDA symbol: CACAL3

Life cycle: perennial

Habit: grass

Native status: Native to Alaska âš˜ Native to Canada âš˜ Native to Greenland âš˜ Native to the lower 48 states  

Synonyms: Calamagrostis canadensis (Michx.) P. Beauv. var. lactea (Beal) C.L. Hitchc. (CACAL2)  âš˜  Calamagrostis canadensis (Michx.) P. Beauv. ssp. langsdorffii (Link) Hultén (CACAL5)  âš˜  Calamagrostis canadensis (Michx.) P. Beauv. var. scabra (J. Presl) Hitchc. (CACAS)  âš˜  Calamagrostis ×lactea Beal (pro sp.), database artifact (CALA3)  âš˜  Calamagrostis langsdorffii (Link) Trin. (CALA43)  âš˜  Calamagrostis lactea Beal (CALA83)  âš˜  Calamagrostis nubila Louis-Marie (CANU6)   

Bluejoint Grass: A Hardy Native for Wet Spots and Wild Gardens If you’ve ever wondered what to do with that persistently soggy corner of your yard, let me introduce you to bluejoint grass – a native champion that actually loves getting its feet wet! This hardy perennial grass might not ...

Bluejoint Grass: A Hardy Native for Wet Spots and Wild Gardens

If you’ve ever wondered what to do with that persistently soggy corner of your yard, let me introduce you to bluejoint grass – a native champion that actually loves getting its feet wet! This hardy perennial grass might not have the flashiest flowers, but it’s got character, resilience, and a knack for solving some tricky landscaping challenges.

Meet the Bluejoint

Bluejoint (Calamagrostis canadensis var. langsdorffii) is a tall, graceful perennial grass that’s as tough as they come. As a member of the grass family, it’s what botanists call a graminoid – basically nature’s way of saying it’s a true grass with all the classic grass features we know and love.

This isn’t just any grass, though. Bluejoint is a proud native of North America, naturally occurring across a massive range that spans from Alaska down through Canada and into many U.S. states. You’ll find it growing wild in places like Alberta, British Columbia, Alaska, Manitoba, California, Ontario, Colorado, Quebec, Saskatchewan, and many others – basically, if it gets cold and wet, bluejoint probably calls it home.

Why You Might Want Bluejoint in Your Garden

Here’s where bluejoint really shines – it’s the perfect plant for those challenging wet areas that make other plants throw in the towel. If you’ve got:

  • A rain garden that needs hardy plants
  • Wet, marshy spots in your yard
  • Areas where you want a naturalized, meadow-like look
  • Erosion problems near water features
  • A desire to support native plant communities

Then bluejoint might be your new best friend! This grass creates beautiful, feathery seed heads that dance in the breeze and add movement to the garden. It’s also incredibly hardy – we’re talking zones 2-7, which means it can handle some seriously frigid temperatures.

The Aesthetic Appeal

Don’t expect showy flowers from bluejoint – it’s wind-pollinated, so it puts its energy into creating graceful, airy seed heads instead. The grass grows tall with narrow leaves and produces delicate, feathery plumes that catch the light beautifully. It’s the kind of plant that adds texture and natural movement to your landscape without demanding center stage.

Growing Bluejoint Successfully

The good news about bluejoint is that once you understand its preferences, it’s remarkably low-maintenance. Here’s what this grass loves:

Ideal Growing Conditions

  • Moisture: Moist to wet soils – this grass actually prefers what most plants would consider too wet
  • Light: Full sun to partial shade (pretty flexible here)
  • Soil: Adaptable, but thrives in rich, organic soils
  • Climate: Cold-hardy and loves cooler climates

Planting and Care Tips

Bluejoint spreads naturally through underground stems called rhizomes, which means it can fill in an area over time. This makes it excellent for naturalized plantings but something to consider if you prefer your plants to stay exactly where you put them.

Once established, this grass is incredibly self-sufficient. It doesn’t need regular fertilizing, and as long as it has adequate moisture, it’ll thrive with minimal intervention. Just give it space to do its thing!

Perfect Garden Partners

Bluejoint works beautifully in naturalistic garden designs where you want to mimic natural wetland communities. It pairs wonderfully with other native wetland plants and creates habitat for wildlife while requiring very little from you in terms of maintenance.

Is Bluejoint Right for You?

This grass is perfect if you’re looking for a low-maintenance, native solution to wet areas in your landscape. It’s especially great for gardeners who appreciate the subtle beauty of grasses and want to support local ecosystems. Just remember that it likes to spread, so give it room to roam or plan accordingly!

If you’re dealing with persistently wet spots in your yard and want something that’s both beautiful and beneficial to local wildlife, bluejoint grass might just be the perfect solution you’ve been looking for.

Bluejoint

Classification

Group

Monocot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Liliopsida - Monocotyledons

Subclass

Commelinidae

Order

Cyperales

Family

Poaceae Barnhart - Grass family

Genus

Calamagrostis Adans. - reedgrass

Species

Calamagrostis canadensis (Michx.) P. Beauv. - bluejoint

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA