About
Achillea sibirica 'Stephanie Cohen' is a vertical perennial characterized by its slender, dark green leaves that feature a finely serrated edge. This plant produces flat clusters of soft pink flowers.
About the genus
Achillea consists of perennial plants that can grow in a mat-forming or upright habit. These mostly herbaceous species feature leaves that may be aromatic, either pinnately divided or simple with serrated edges. The plants produce flattened clusters of small, daisy-like flower heads.
Growing conditions
- Sunlight
- Full sun, Partial shade
- Soil type
- Chalk, Loam, Sand
- Soil pH
- Alkaline, Neutral
- Soil moisture
- Well-drained
- Aspect
- South-facing, East-facing, West-facing
- Exposure
- Sheltered
- UK hardiness
- H6
Plant details
- Plant type
- Herbaceous Perennial
- Habit
- Bushy
- Foliage
- Deciduous
- Height
- 0.5-1 metres
- Spread
- 0.1-0.5 metres
- Time to full height
- 2-5 years
- Suggested uses
- Prairie planting, Cottage and informal garden
Care notes
- Cultivation
- Grow in well-drained soil in full sun
- Pruning
- Deadhead regularly to prolong flowering
- Propagation
- Divide in spring
- Pest resistance
- May be susceptible to aphids
- Disease resistance
- Powdery mildew may occur