Sulphur-Flower Buckwheat vs Rocky Mountain Fescue - TreeTime.ca

Sulphur-Flower Buckwheat vs Rocky Mountain Fescue

Eriogonum umbellatum

Festuca saximontana

CUSTOM GROW

CUSTOM GROW

Sulphur-Flower Buckwheat
Rocky Mountain Fescue

Sulphur-Flower Buckwheat is a native perennial wildflower known for its dense clusters of cream to yellow flowers. The long-lasting blooms persist from late spring into summer, providing an extended nectar source for a variety of pollinators. The flower buds are often red-tinted before opening. As the blooms age, they shift to orange or red, adding seasonal interest and making them well-suited to dried flower arrangements. Its seeds are also eaten by birds, adding to its ecological value.

Depending on climate and conditions, Sulphur-Flower Buckwheat may be evergreen to semi-evergreen, or its foliage may turn red during fall. Its deep roots and spreading growth stabilize rocky or sandy soils, making it useful for erosion control. Exceptionally hardy once established, it requires little care and thrives in challenging environments, making it an excellent choice for pollinator gardens, naturalization, and ecological restoration projects.

Rocky Mountain Fescue is a native perennial bunchgrass recognized for its fine-textured clumps and adaptability to harsh environments. It grows well in dry, rocky, and nutrient-poor soils and is highly cold-tolerant, making it well-suited to both prairie and alpine habitats. Its fibrous root system contributes to soil stability and helps reduce erosion on slopes and shallow soils.
Widespread across western and northern North America, Rocky Mountain Fescue is an important component of many prairie and alpine ecosystems. It contributes ground cover and organic matter that support soil function, provides cover for small wildlife, and offers moderate forage for grazing animals. Hardy and versatile, it is used in ecological restoration, naturalization, and habitat enhancement projects, particularly in upland and alpine landscapes.

Sulphur-Flower Buckwheat Quick Facts

Rocky Mountain Fescue Quick Facts

Zone: 3a
Zone: 2a
Height: 0.2 m (0.5 ft)
Height: 0.3 m (1.0 ft)
Spread: 0.5 m (1.5 ft)
Spread: 0.2 m (0.8 ft)
Light: partial shade, full sun
Light: full sun
Moisture: dry, normal
Moisture: dry, normal
Growth rate: medium
Growth rate: fast
Life span: short
Life span: short
Growth form: upright to spreading, clump-forming
Growth form: clump-forming
Spreading: seeds - low
Spreading: seeds - low


Foliage: leathery
Fall colour: reddish bronze
Flowers: colour varies, typically white to yellow
Bloom time: mid spring to mid summer
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: AB, BC
Native to: AB, BC, SK, MB, ON, QC, NL, YT, NT, NU
Other Names: sulphur buckwheat, sulphur flower, wild buckwheat
Other Names: mountain fescue