Yarrow, Achillea millefolium, is a perennial herb found across North America and Europe, from Afghanistan to Alaska and from Alabama to Wyoming. Known for its light, airy foliage and medicinal properties, yarrow has been used traditionally for stopping bleeding, healing wounds, supporting the immune system, and aiding digestion. This plant thrives in various soil types—light, medium, or heavy—and prefers a pH between 6 and 8. It can be propagated by direct seeding or indoor planting followed by hardening off before transplanting outside. Yarrow's leaves are edible and have been used for culinary purposes. Its light, dry to moist nature makes it adaptable in gardens where it can grow up to 0.6 meters tall. In traditional medicine, yarrow is recognized for its topical applications on wounds and as a support for the first-line immune response during fevers.
Yarrow, Achillea millefolium, is a perennial herb found across North America and Europe, from Afghanistan to Alaska and from Alabama to Wyoming.
Traditionally used for topical & skin, immune support, digestion. Each claim is evidence-rated — see Section II for full citations.
Achilleine — coagulation
Achilleine + sesquiterpene lactones
Achilleine + bitter principles
Yarrow is a hardy perennial that's easy to grow for beginners, making it an excellent choice for your first garden plant.
Seeds or seedlings, a trowel, and a watering can.
Plant seeds in spring after the last frost or transplant young plants in early spring or late summer.
Choose a well-draining soil with a pH between 6 and 8. Ensure containers have drainage holes.
Direct sow seeds outdoors after the last frost, or start them indoors 4-6 weeks before planting outside.
Keep soil consistently moist and protect seedlings from extreme weather. Gradually expose to outdoor conditions.
Water regularly but avoid overwatering, especially in clay soils. Deadhead flowers to encourage more blooms.
Prune back after flowering to maintain shape and prevent self-seeding. Remove dead leaves as needed.
Overwatering, planting too deep, neglecting to prune, and not providing enough sunlight.
These plants help — by repelling pests, fixing nitrogen, attracting pollinators, or sharing space well.
Plants you might compare or use together — scored by shared family, common use cases, and growing requirements.
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