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Common Yarrow growing in a garden
Perennial flower

Common Yarrow plant profile

Achillea millefolium

A perennial flower for full sun.

Last updated .

When to plant

When to plant Common Yarrow

Grow in well-drained soil in full sun, propagated by seed or by division in spring. Space plants 12 to 36 inches apart and deadhead to prolong bloom and limit spread by seed.

The calendar shows this cited seasonal window as an approximate band. It does not convert the season into frost-adjusted dates.

Open Common Yarrow in my garden calendar

Shows the source-backed planting season, not frost-adjusted dates.

Growing conditions

Sun
Full sun
Soil pH
6 to 8
Lifecycle
Perennial
Spacing
12 to 36 in apart
Hardiness
Zones 3 to 9Find my hardiness zone

Next steps

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Evidence trail

Evidence behind this profile

Original extension and institutional publications behind the planting, care, and safety facts on this page.

  1. Achillea millefolium (Common Yarrow)

    NC State Extension Gardener Plant Toolbox. Supports general reference. Checked 2026-06-18.

  2. Toxic and Non-Toxic Plants: Yarrow (Achillea millefolium) entry

    ASPCA Animal Poison Control Center. Supports pet-safety verdicts for dogs and cats. Checked 2026-07-18.