Rough Fescue vs Idaho Fescue - TreeTime.ca

Rough Fescue vs Idaho Fescue

Festuca campestris

Festuca idahoensis

CUSTOM GROW

CUSTOM GROW

Rough Fescue
Idaho Fescue

Rough Fescue is a native perennial bunchgrass valued for its tall, dense clumps and long-lived growth. Adapted to cold climates and nutrient-poor soils, it is a defining species of northern prairie and montane grasslands. In western Canada and the northern Rocky Mountains, Rough Fescue is considered a keystone species because it shapes plant communities, stabilizes soils, and supports ecosystem resilience.

It is a cool-season grass, growing most actively in spring and fall and slowing during the heat of summer. Rough Fescue is highly regarded as forage for wildlife and livestock, with elk, deer, and other grazing animals favoring it. Taller than many other fescue species, it is well-suited to prairie restoration, erosion control, and naturalization projects where it supports both biodiversity and long-term ecosystem health.

Idaho Fescue is a native perennial bunchgrass recognized for its fine-textured, blue-green foliage. Its dense, tufted growth and deep root system make it drought-tolerant and effective at stabilizing soils, particularly on slopes and open grasslands. Its upright, arching form and dense clumps give it strong ornamental value in both natural and designed landscapes.
This hardy grass provides cover for wildlife and forage for grazing animals, while also supporting soil health and habitat diversity. Idaho Fescue is well-suited for erosion control, ecological restoration, naturalization, xeriscaping, and habitat enhancement projects.

Rough Fescue Quick Facts

Idaho Fescue Quick Facts

Zone: 3a
Zone: 4a
Height: 0.3 m (1.0 ft)
Height: 0.3 m (1.0 ft)
Spread: 0.3 m (1.0 ft)
Spread: 0.3 m (1.0 ft)
Light: partial shade, full sun
Light: partial shade, full sun
Moisture: dry, normal
Moisture: dry, normal
Growth rate: fast
Growth rate: fast
Life span: short
Life span: short
Growth form: clump-forming
Growth form: clump-forming
Spreading: seeds - medium
Spreading: seeds - low


Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: AB, BC
Native to: AB, BC, SK
Other Names: mountain rough fescue, prairie fescue
Other Names: blue bunchgrass, bluebunch fescue