Mountain yarrow (Achillea collina)

Mountain yarrow

Mountain yarrow is a resilient perennial herb known for its flat-topped clusters of small, usually white to pinkish flowers that bloom above fern-like foliage. This hardy species thrives in well-drained soils and open sunny areas, where it forms a low mound, typically spreading through rhizomes. Its aromatic leaves and flowers attract pollinators while its toughness allows it to withstand drought and poor soil conditions.

Scientific classification

Species

Mountain yarrow (Achillea collina)

Asters bellflowers fanflowers and allies

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Perennial

Lifespan

Herb

Plant Type

Semi-evergreen

Leaf type

Images of Mountain yarrow

Care Guide for Mountain yarrow

Every week

Water

Full sun

Sunlight

0 - 35 ℃

Ideal Temperature

Water: Mountain yarrow requires minimal watering, thriving on natural rainfall. In dry conditions with under 25 mm (1 in) of weekly rainfall, provide supplemental water. Excess moisture can lead to unattractive growth and root rot; thus, well-drained soil is essential.

Fertilize: Mountain yarrow requires minimal fertilizer, as excess can lead to rampant growth. Apply organic fertilizer 1-2 times during the spring growing season. Avoid high nitrogen fertilizers to maintain optimal flower color.

Pruning: In late spring, prune overgrown stems of mountain yarrow to avoid toppling. During hot, rainy summer months, remove yellowing lower leaves. After flowering, cut withered stalks, and at fall's end, trim dead stems and leaves to promote healthy resprouting in the next growing season.

Propagation: Mountain yarrow propagates in spring, summer, and fall through seed sowing, division, or cuttings. Seeds germinate in about a week after being sown 0.5 cm deep. Division is done in spring, while cuttings involve 5-10 cm branch sections, rooted in soil and watered, transplanting after 15-20 days.

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Learn More About Mountain yarrow

How to Transplant

Benefit

How to Grow and Care

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