Yarrow vs Idaho Fescue - TreeTime.ca

Yarrow vs Idaho Fescue

Achillea borealis (Previously Achillea millefolium)

Festuca idahoensis

COMING SOON

(new stock expected: fall of 2025)

CUSTOM GROW

Yarrow
Idaho Fescue

Yarrow is a herbaceous, native wildflower that is found across Canada. It features large, flat clusters of tiny white flowers. The blooms attract a variety of pollinators, making it an ideal choice for pollinator gardens. While partial shade is tolerated, the best flowering occurs in full sun. Yarrow is resistant to deer and rabbits, making it both a beautiful and practical addition to your landscape.

The entire plant is edible, but leaves and flowers are most commonly consumed. They have a strong licorice scent and a mild sweet flavor that is similar to tarragon. Yarrow leaves can also be used as a natural insect repellent.

It is important to plant Yarrow in the right place, it can spread quickly via both rhizomes and self-seeding. Deadheading the spent flowers will extend the bloom season and can help limit self-seeding.

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.

Yarrow 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: 0.9 m (3 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
Spreading: seeds - low
Suckering: none

Toxicity: toxic to dogs, cats, and horses

Flowers: clusters of white flowers
Bloom time: late spring to early summer
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, YT, NT, NU, PE
Native to: AB, BC, SK
Other Names: common yarrow, devils nettle, milfoil, western yarrow, white yarrow
Other Names: blue bunchgrass, bluebunch fescue