About
Achillea 'Helios' is a vertical perennial characterized by its finely dissected, grey-green foliage. It produces substantial, flat clusters of vibrant golden-yellow blooms.
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
- Soil type
- Loam
- Soil pH
- Acid
- Soil moisture
- Well-drained
- Aspect
- South-facing
- Exposure
- Exposed
- UK hardiness
- H7
Plant details
- Plant type
- Herbaceous Perennial
- Habit
- Bushy
- Foliage
- Semi evergreen
- Height
- 0.5-1 metres
- Spread
- 0.1-0.5 metres
- Time to full height
- 2-5 years
- Suggested uses
- Cottage and informal garden, Prairie planting
Care notes
- Cultivation
- An open sunny position in a moist but well-drained soil is best, but it will tolerate most situations apart from heavy, wet clay in winter
- Pruning
- Cut back untidy foliage in spring
- Propagation
- Propagate by division in spring
- Pest resistance
- May be susceptible to aphids
- Disease resistance
- May be susceptible to powdery mildews