Yarrow

Overview

Feathery foliage and flat flower clusters make yarrow easy to recognize in bloom. It tolerates drought after establishment and often performs poorly when pampered with rich soil and frequent water.

The species can spread vigorously. Cultivars may be more garden-mannered, but deadheading and division still help maintain a defined clump.

Growing conditions at a glance

Life cycle

Spreading herbaceous perennial

USDA zones

Typically USDA zones 3–9

Sun

Full sun for sturdy stems and dense flowering

Soil

Average to lean, sharply drained soil

Soil pH

About 6.0–7.5

Water

Water during establishment; afterward allow soil to dry between deep waterings

Spacing

18–24 inches

Germination

Typically 10–20 days; surface sow or barely cover because light helps

How to plant yarrow

1. Select a place where gradual spread is acceptable.
2. Press seed into the surface or transplant at crown level.
3. Avoid rich fertilizer that produces floppy growth.

Growing from seed

• Use bright light and steady surface moisture.
• Thin seedlings before they form a dense mat.
• Expect color variation when growing ornamental cultivars from collected seed.

Growing in containers

Yarrow can grow in a large, deep container, but drainage must be excellent. Divide when the center becomes woody or growth crowds the pot.

Harvest, dry and store

Harvest

Cut flower clusters shortly after opening for fresh or dried arrangements. Leave some for pollinators and later seed.

Drying

Hang small bundles out of direct sun with space between heads, or dry heads flat on screens.

Storage

Store fully dry flowers and leaves separately in labeled airtight containers.

Common problems and useful companions