North America Native Plant

Eurasian Junegrass

Botanical name: Koeleria asiatica atroviolacea

USDA symbol: KOASA

Life cycle: perennial

Habit: grass

Native status: Native to Alaska  

Synonyms: Koeleria atroviolacea Domin (KOAT)  âš˜  Koeleria cairnesiana Hultén (KOCA2)   

Eurasian Junegrass: A Hardy Native Alaskan Grass Worth Considering If you’re looking for a truly unique native grass that can handle some serious cold, let me introduce you to Eurasian Junegrass (Koeleria asiatica atroviolacea). This perennial grass is as tough as they come, calling the rugged landscapes of Alaska home. ...

Eurasian Junegrass: A Hardy Native Alaskan Grass Worth Considering

If you’re looking for a truly unique native grass that can handle some serious cold, let me introduce you to Eurasian Junegrass (Koeleria asiatica atroviolacea). This perennial grass is as tough as they come, calling the rugged landscapes of Alaska home.

What Makes Eurasian Junegrass Special?

Eurasian Junegrass belongs to the fascinating world of graminoids – that’s the fancy term for grasses and grass-like plants. As a perennial, this hardy little trooper comes back year after year, which is pretty impressive considering the harsh conditions it naturally endures.

You might also see this grass listed under its synonyms Koeleria atroviolacea or Koeleria cairnesiana in older botanical references, but don’t let the name variations confuse you – it’s the same remarkable plant.

Where Does It Call Home?

This grass is a true Alaskan native, naturally occurring throughout the state’s diverse landscapes. From coastal areas to interior regions, Eurasian Junegrass has adapted to some of the most challenging growing conditions on the continent.

Should You Plant Eurasian Junegrass?

Here’s where things get a bit tricky – and honestly, pretty exciting for the adventurous gardener. Eurasian Junegrass is one of those plants that’s so specialized and regionally specific that there’s limited information available about its cultivation outside its native range.

The case for planting it:

  • It’s incredibly cold-hardy (we’re talking Alaska-level tough)
  • As a native species, it supports local ecosystems
  • Perennial nature means it’s a long-term investment
  • Adds authentic regional character to northern gardens

The challenges:

  • Very limited availability in the nursery trade
  • Specific growing requirements may be difficult to replicate
  • Best suited for gardens in similar climates to its native range

Growing Conditions and Care

Since Eurasian Junegrass is native to Alaska, we can make some educated guesses about what it needs to thrive. This grass likely prefers:

  • Extremely cold-hardy conditions (probably suitable for USDA zones 1-4)
  • Well-draining soils
  • Full sun to partial shade
  • Cool, moist growing seasons
  • Protection from extreme heat

Unfortunately, specific care instructions for this subspecies are scarce in gardening literature, which means growing it successfully would require some experimentation and close observation.

The Bottom Line

Eurasian Junegrass is definitely not your typical garden center find. It’s a plant for the truly adventurous gardener who lives in a climate similar to Alaska and wants to experiment with ultra-native species. If you’re in the Lower 48 and looking for cold-hardy native grasses, you might want to explore other Koeleria species or native grasses specific to your region instead.

For Alaskan gardeners, this could be a fantastic way to incorporate a truly local native into your landscape – if you can track down seeds or plants from a reputable native plant source.

The mystery and challenge of growing such a specialized plant might just be the gardening adventure you’ve been looking for!

Eurasian Junegrass

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

Koeleria Pers. - Junegrass

Species

Koeleria asiatica Domin - Eurasian Junegrass

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