North America Non-native Plant

Field Fescue

Botanical name: Festuca arvernensis

USDA symbol: FEAR4

Life cycle: perennial

Habit: grass

Native status: Non-native, reproduces and persists in the wild in the lower 48 states  

Synonyms: Festuca glauca Lam., non Vill. (FEGL)  âš˜  Festuca ovina L. var. glauca (Lam.) W.D.J. Koch (FEOVG)   

Field Fescue: What We Know About This Lesser-Known Grass If you’ve stumbled across the name field fescue (Festuca arvernensis) in your gardening research, you might be scratching your head trying to find solid information about this particular grass. Don’t worry – you’re not alone! This is one of those plant ...

Field Fescue: What We Know About This Lesser-Known Grass

If you’ve stumbled across the name field fescue (Festuca arvernensis) in your gardening research, you might be scratching your head trying to find solid information about this particular grass. Don’t worry – you’re not alone! This is one of those plant species that seems to fly under the radar, even among seasoned gardeners.

The Basics: What Is Field Fescue?

Field fescue is a perennial grass that belongs to the graminoid family – that’s garden-speak for grass or grass-like plants. Like its cousins in the fescue family, it’s built to last, coming back year after year once established. You might also see it listed under some scientific synonyms, including Festuca glauca Lam. (though not the Vill. version) and Festuca ovina var. glauca.

Where You’ll Find It Growing

Here’s where things get interesting – and a bit limited. In the United States, field fescue has established itself in just two states: California and New Mexico. It’s considered a non-native species that has naturalized, meaning it reproduces on its own in the wild without any help from gardeners.

Should You Plant Field Fescue?

Here’s the honest truth: there’s a lot we don’t know about this particular species. While it’s not listed as invasive or noxious, the lack of detailed information about its growing habits, ecological impact, and garden performance makes it a bit of a wild card.

If you’re drawn to fescue grasses for your landscape, you might want to consider some well-documented native alternatives instead:

  • Native bunch grasses specific to your region
  • Local sedge species that provide similar texture
  • Indigenous grasses recommended by your local extension office

The Information Gap

Unfortunately, specific details about field fescue’s appearance, growing requirements, and garden performance are scarce. We don’t have reliable information about:

  • Its mature size and growth rate
  • Preferred soil and light conditions
  • USDA hardiness zones
  • Benefits to pollinators and wildlife
  • Best planting and care practices

The Bottom Line

While field fescue might sound intriguing, the lack of comprehensive growing information makes it a risky choice for most gardeners. Your time and garden space are precious, so why not invest in native grasses with proven track records and well-documented benefits to local ecosystems?

If you’re set on exploring lesser-known grasses, connect with your local native plant society or extension office. They can point you toward native species that will thrive in your specific conditions while supporting local wildlife – now that’s what we call a win-win!

Field Fescue

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

Festuca L. - fescue

Species

Festuca arvernensis Auquier, Kerguélen & Markgr.-Dannenb. - field fescue

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