North America Native Plant

Lapland Reedgrass

Botanical name: Calamagrostis lapponica

USDA symbol: CALA6

Life cycle: perennial

Habit: grass

Native status: Native to Alaska âš˜ Native to Canada âš˜ Native to Greenland  

Synonyms: Calamagrostis lapponica (Wahlenb.) Hartm. var. alpina Hartm. (CALAA2)  âš˜  Calamagrostis lapponica (Wahlenb.) Hartm. var. groenlandica Lange (CALAG)  âš˜  Calamagrostis lapponica (Wahlenb.) Hartm. var. nearctica A.E. Porsild (CALAN2)   

Lapland Reedgrass: The Arctic Native That Thrives Where Others Fear to Grow If you’re gardening in one of those character-building cold climates where winter temperatures make polar bears reach for extra scarves, let me introduce you to a grass that actually enjoys the chill: Lapland reedgrass (Calamagrostis lapponica). This hardy ...

Lapland Reedgrass: The Arctic Native That Thrives Where Others Fear to Grow

If you’re gardening in one of those character-building cold climates where winter temperatures make polar bears reach for extra scarves, let me introduce you to a grass that actually enjoys the chill: Lapland reedgrass (Calamagrostis lapponica). This hardy perennial grass doesn’t just survive in cold conditions—it absolutely thrives in them.

What Exactly Is Lapland Reedgrass?

Lapland reedgrass is a native perennial grass that belongs to the graminoid family, which includes all those wonderful grass-like plants that add texture and movement to our gardens. Don’t let the reedgrass name fool you into thinking it’s some towering giant—this is more of a well-behaved, clumping grass that knows its place in the landscape.

Botanically known as Calamagrostis lapponica, this species has earned several scientific synonyms over the years, including varieties like alpina, groenlandica, and nearctica, reflecting its wide distribution across arctic regions.

Where Does This Cold-Weather Champion Come From?

This grass is a true northerner, native to some of the coldest places on Earth. Its natural range includes Alaska, Canada (spanning from British Columbia to Labrador), and Greenland. In Canada, you’ll find it growing wild across Alberta, British Columbia, Manitoba, Ontario, Quebec, Saskatchewan, Yukon, Northwest Territories, Nunavut, and Labrador.

Why Your Garden Needs This Arctic Beauty

Here’s where Lapland reedgrass really shines—literally and figuratively. This perennial grass forms attractive, dense tufts of narrow green leaves that catch the light beautifully. In summer, it produces delicate, purplish-tinged flower panicles that add a soft, ethereal quality to plantings. It’s the kind of plant that doesn’t scream for attention but quietly makes everything around it look better.

The real magic happens when you consider its role in the landscape. This grass is perfect for:

  • Alpine and rock gardens where few plants dare to venture
  • Naturalized areas that need something authentic to the region
  • Rain gardens and areas with variable moisture
  • Erosion control on slopes and challenging sites
  • Adding texture and movement to cold-climate native plantings

Growing Conditions That Make It Happy

One of the best things about Lapland reedgrass is that it’s remarkably unfussy about growing conditions—as long as you’re gardening in a cold climate. This grass thrives in USDA hardiness zones 1-4, making it perfect for gardeners who struggle to find plants that can handle serious cold.

It prefers moist to wet soils but has facultative wetland status, meaning it’s equally content in regular garden soil or wetter conditions. Give it full sun to partial shade, and it’ll reward you with steady, reliable growth. The fact that it tolerates poor soils makes it an excellent choice for challenging sites where other plants might sulk.

Planting and Care: Easier Than You Think

Here’s the refreshing truth about Lapland reedgrass: once established, it’s practically maintenance-free. Plant it in spring or early fall, water it in well, and then step back and let it do its thing. The grass is slow to moderate in growth rate, so you won’t be constantly trimming and managing it.

Your main care task is a simple spring cleanup—just remove any dead foliage to make way for fresh growth. Beyond that, this self-sufficient grass pretty much takes care of itself.

Benefits for Wildlife and Pollinators

While Lapland reedgrass is wind-pollinated (so it won’t attract clouds of butterflies), it provides valuable habitat structure for beneficial insects and small wildlife. The dense clumps offer shelter and nesting sites, while the seeds provide food for birds. It’s one of those quiet contributors to ecosystem health that works behind the scenes.

Is This Grass Right for Your Garden?

If you’re gardening in zones 1-4 and looking for a reliable, attractive native grass that won’t require babying, Lapland reedgrass deserves serious consideration. It’s especially valuable if you’re creating naturalized areas, working with challenging wet or poor soils, or simply want to add authentic local character to your landscape.

The main limitation is its cold-climate requirement—if you’re gardening in warmer zones, this arctic native simply won’t thrive. But for northern gardeners, it’s a gift: a beautiful, low-maintenance grass that’s perfectly adapted to your challenging climate and eager to prove that cold-weather gardening can be every bit as rewarding as gardening in gentler zones.

Sometimes the best plants for tough climates are the ones that actually call those climates home—and Lapland reedgrass is the perfect example of that principle in action.

Wetland Status

The rule of seasoned gardeners and landscapers is to choose the "right plant for the right place" matching plants to their ideal growing conditions, so they'll thrive with less work and fewer inputs. But the simplicity of this catchphrase conceals how tricky plant selection is. While tags list watering requirements, there's more to the story.

Knowing a plant's wetland status can simplify the process by revealing the interaction between plants, water, and soil. Surprisingly, many popular landscape plants are wetland species! And what may be a wetland plant in one area, in another it might thrive in drier conditions. Also, it helps you make smarter gardening choices and grow healthy plants with less care and feeding, saving you time, frustration, and money while producing an attractive garden with greater ecological benefits.

Regions
Status
Moisture Conditions

Alaska

FAC

Facultative - Plants with this status can occur in wetlands and non-wetlands

Lapland Reedgrass

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 lapponica (Wahlenb.) Hartm. - lapland reedgrass

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