Bouba via Wikimedia Commons / CC BY-SA 4.0
Yarrow
Achillea millefolium
Overview
Named for Achilles, who reportedly used it on his soldiers' wounds. One of the most important medicinal plants in Western, Native American, and Chinese traditions. Drought-tolerant once established, attracts a wide range of pollinators including beneficial predatory insects. The 'millefolium' (thousand-leaf) in its name describes its delicate, fern-like foliage.
Yarrow (Achillea millefolium) is a versatile and hardy herb that has captivated gardeners and herbalists alike for centuries. With its distinctive appearance and myriad uses, this member of the Asteraceae family is truly a standout plant.
Appearance and Distinguishing Features
Yarrow boasts bright green fern-like leaves that are deeply divided into delicate, thread-like segments. In summer, the plant erupts with clusters of tiny, white or pink flowers, resembling a bouquet atop the tall, erect stem. The fragrance is often described as pungent or slightly spicy, which can vary depending on the time of day and weather conditions.
Native Range and Habitat
Originally native to Europe, yarrow has naturalized across much of North America. It thrives in a variety of habitats, from meadows and grasslands to roadsides and disturbed areas, making it a common sight in many landscapes.
Growing Conditions and Care
Yarrow is remarkably adaptable and low-maintenance. It prefers full sun but can tolerate partial shade, and well-drained soil. The plant spreads readily by self-seeding, ensuring a steady supply of new plants for any garden. Deadheading (removing spent flowers) can encourage additional blooms throughout the season.
Uses
Edible: Yarrow's young leaves have a spicy, slightly bitter flavor and can be used in salads or as garnish. The flowers are also edible and add a subtle touch to dishes.
Medicinal
For centuries, yarrow has been used for its medicinal properties, including treating wounds, reducing fever, and soothing digestive issues. It is often called "herb of the battlefield" due to its use by soldiers in ancient times.
Ornamental
Yarrow's stunning flowers and attractive foliage make it a popular choice for both formal gardens and wildflower meadows. With many cultivars available, gardeners can choose from various colors and growth habits.
Ecological
Bees and other pollinators love yarrow, making it an excellent plant for attracting beneficial insects to your garden.
Cultural or Historical Significance
Yarrow holds a special place in folklore and herbal medicine traditions. In addition to its battlefield use, the plant has been used to treat headaches, induce sleep, and even promote bravery. The herb is named after the Greek hero Achilles, who supposedly used it to heal his soldiers' wounds during the Trojan War.
Notable Varieties or Related Species
With over 20 species and numerous cultivars, yarrow offers a wide range of options for gardeners. Some popular varieties include 'Red Secretary,' featuring deep red flowers; 'Paprika,' with vibrant red-tinged flower centers; and 'Cerise Queen,' boasting soft pink blooms.
Growing Conditions
Habitat & Range
- Habitat
- Meadows & Open Areas
- Native Range
- also native to Iran
- Native Region
- North America
- Cultivation Region
- Northern temperate regions
Botanical data via projectGAIA.
Companion Planting & Soil
Good Companions
Sowing & Propagation
Propagation Methods
Planting Calendar
When to sow, transplant, and harvest by growing zone.
| Zone | Action | Months | Notes |
|---|---|---|---|
| Cold (1-2) | Start Indoors | Mar — Apr | Surface-sow seeds; light required for germination |
| Cold (1-2) | Transplant | May — Jun | Transplant after frost; tough plants establish quickly |
| Cold (1-2) | Harvest | Jul — Sep | Cut flower heads at peak bloom; dry for medicinal use |
| Cool (3-4) | Direct Sow | Apr — Jun | Direct sow or transplant; once established, drought-tolerant |
| Cool (3-4) | Harvest | Jun — Sep | Harvest leaves and flowers; leaves anytime, flowers at full bloom |
| Moderate (5-7) | Direct Sow | Mar — May | Spring planting; divides easily for free plants |
| Moderate (5-7) | Harvest | Jun — Oct | Continuous leaf harvest; flower harvest in summer |
| Moderate (5-7) | Bloom | Jun — Sep | Long bloom season; deadhead for continued flowering |
| Moderate (5-7) | Divide | Mar — Apr | Divide every 3 years to prevent overcrowding |
| Warm (8-9) | Direct Sow | Feb — Apr | Plant in spring or fall |
| Warm (8-9) | Harvest | May — Nov | Long harvest season; cut to ground in fall |
| Warm (8-9) | Bloom | May — Oct | Extended bloom in mild climates |
| Hot (10+) | Transplant | Jan — Mar | Plant in cool season; struggles in extreme heat |
Uses
Culinary
- Young leaves in salads (very sparingly — bitter)
- Flowers as garnish
- Traditional ingredient in gruit (pre-hops beer flavoring)
Medicinal
- Styptic — stops bleeding from minor wounds when crushed leaves applied
- Tea for fever, colds, and digestive complaints
- Tincture used for menstrual cramps and circulation
Other Uses
- Beneficial insect attractor — predatory wasps, hoverflies, lacewings
- Compost activator and dynamic accumulator
Safety Notes
Avoid during pregnancy. Some people develop skin sensitivity (photodermatitis). Strong medicinal effects — use thoughtfully and consult an herbalist for therapeutic use.
