Colorado, Yarrow

Colorado Yarrow Seed

Multicolored yarrow clusters thrive in lean, well-drained soils
Red, rose, pink, yellow, and white flowers mingle
Carefree established plants tolerate dry periods with ease
Cut stems fill bouquets while remaining blooms feed butterflies

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Key Attributes

Botanical Name

Achillea millefolium

Days to maturity

125 Days

Sun

Full Sun

Packet

500 Seeds

Zones 3–9 Check your growing zone

About Colorado, Yarrow Seed, Yarrow Seed

Colorado mix is a hardy yarrow that can grow in any well-drained soil. Once established this plant is care-free and easy to grow. Produces long-lasting flower clusters in beautiful shades of red, rose, pink, yellow, and white. The Colorado yarrow makes beautiful cut-flowers. Use them as the centerpiece or as filler in a bouquet. What you don't cut will attract beneficial insects to the garden as butterflies love yarrow. \.

Growing details

Planting

Sow Depth

1/4"

Days to Germination

10–21 days

Germination Type

C30 - Cold Moist 30 Days

In-row plant spacing

18"

Plant profile

Life Cycle

Perennial

Hardiness Zone

Zones 3-9

Plant Height

24 inches

Growth Habits

Clumping, Upright, Spreading

Seed & variety

Seeds Per Ounce

178,063

Color

Multicolor

Seed Type

Open Pollinated

Before Planting

Yarrow tolerates lean ground but requires good drainage and performs best in full sun. Remove perennial weeds, loosen the surface, and add little compost. Make a firm seedbed and cold-moist stratify seed for about 30 days before sowing.

Planting

Sow yarrow outdoors in fall or start indoors according to its germination requirement; many perennial species benefit from a cool period before warmth. Maintain even moisture during germination and provide bright light after emergence. Harden indoor-grown seedlings before planting outdoors. Transplant while young to minimize root disturbance, and thin direct sowings after sturdy true leaves develop.

Watering

Once established, yarrow prefers deep, infrequent watering. Let the surface dry between irrigations, supply extra moisture during extended heat, and avoid keeping the crown continuously wet.

Fertilizer

Fertilize yarrow modestly as new spring growth begins, following soil-test recommendations. Stop after midsummer so late tender growth does not reduce winter hardiness.

Harvesting

Yarrow flowers are ready when stems are firm and blooms show mature color without fading. Cut during cool, dry conditions; for seed, leave selected heads until brown and dry.

Tips

Deadhead yarrow frequently and trim weak or crowded stems to improve airflow. Leave a few late flowers to mature only when seed saving or natural reseeding is desired.

Pests & Diseases

Yarrow may develop powdery mildew, rust, leaf spots, or crown rot. Thin spreading colonies, remove infected stems after bloom, and keep irrigation off foliage. Divide vigorous outer growth and discard softened centers. Plants with green, distorted flower heads may have aster yellows and should be removed entirely.

Yarrow can attract aphids, thrips, spider mites, Japanese beetles, and slugs. Scout flowers and new growth regularly, handpick when practical, and protect beneficial insects with targeted controls.