Woolly yarrow (Achillea tomentosa)

Woolly yarrow

Woolly yarrow is a perennial that is well suited for hot, sunny, dry areas. It has fuzzy green leaves and mustard yellow flowers. Separate this plant in spring and fall to propagate.

Scientific classification

Species

Woolly yarrow (Achillea tomentosa)

Asters bellflowers fanflowers and allies

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Perennial

Lifespan

Herb

Plant Type

Spring, Summer, Fall

Bloom Time

2.5 cm

Flower Size

Yellow

Flower Color

Green, Gray, Silver, Yellow

Stem Color

Evergreen

Leaf type

0 - 35 ℃

Ideal Temperature

Spring, Summer

Growth Season

Slow

Growth Rate

Images of Woolly yarrow

Distribution of Woolly yarrow

Distribution Map

Woolly yarrow is a plant that is originally distributed across major regions of southern Europe. Over time, it has been introduced and naturalized in parts of northern, central, and eastern Europe. Additionally, woolly yarrow is also cultivated, indicating its adaptability and presence beyond its native range due to human activity.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Rock garden

Hemisphere Trend Curve

Northern

Sorthern

Quickly Identify Woolly yarrow

Low stature groundcover with woolly, silver-green leaves for water retention.

Clusters of sunny yellow disk and ray flowers with mild, pleasant scent.

2-inch long, grayish leaves with compound, hairy texture emitting spicy fragrance.

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Care Guide for Woolly yarrow

Every 2 weeks

Water

Full sun

Sunlight

0 - 35 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Woolly yarrow prefers well-drained soils, mimicking its rocky and dry habitat. It is drought-tolerant, needing water biweekly while allowing soil to dry out in between. Ideal for xeriscapes, woolly yarrow withstands dry periods, adapting well to low rainfall conditions.

Fertilize: For woolly yarrow, use a balanced NPK fertilizer during planting and apply high-phosphorus fertilizer mid-season to enhance blooming. Fertilize every 6-8 weeks, adjusting for seasonal growth, with less during dormancy. Novices should opt for granular, slow-release fertilizers to prevent over-fertilization.

Pruning: Woolly yarrow is a low-growing perennial with dense woolly foliage and bright yellow flowers. Prune in early spring or late winter to promote growth, remove spent heads, and thin crowded growth for air circulation. Gloves are recommended due to potential skin irritation.

Propagation: Woolly yarrow is propagated by sowing in a well-draining soil mix that replicates its sandy loam habitat. Pre-moisten the soil and press seeds lightly without covering them. Maintain moisture during germination. Once true leaves develop, transplant seedlings carefully to minimize root disturbance.

Repotting: Repot woolly yarrow every 2-3 years, preferably in spring after dormancy, to support its expansive roots. Use a slightly larger pot with good drainage, and ensure well-draining soil post-repotting. Avoid overwatering to promote woolly yarrow's health and resilience.

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