Plant field guide
Yarrow
Flat-topped flower clusters above ferny aromatic foliage. Extremely tough native plant. Dried flowers last for months.
Growing requirements
- Scientific name
- Achillea millefolium
- Sun
- full sun
- Water
- low
- Height
- 18 in (46 cm) – 36 in (91 cm)
- Spread
- 18 in (46 cm) – 24 in (61 cm)
- Spacing
- 18 in (46 cm)
- Hardiness zones & minimum temperature
- USDA 3–9; average annual extreme minimum from -40°F (-40.0°C). Hardiness does not predict local frost dates.
- Difficulty
- easy
Planting & seasonal timing
Northern Hemisphere planting months: not yet verified in our database.
Northern Hemisphere pruning months: March.
For the Southern Hemisphere, these seasonal windows shift approximately six months. Check your local frost forecast, soil temperature, and species requirements; calendar months are not a guarantee of planting safety.
Very drought tolerant. Can spread aggressively. Deadhead to prevent self-seeding. Excellent dried flower.
Pruning
Cut back dead stems in early spring. Shear after first bloom for rebloom. Divide every 3 years to control.
Fertilizer
None needed
Does not need fertilizer
Mulch
Minimal mulch. Needs good drainage.