About
Achillea ptarmica 'Nana Compacta' is a low-growing perennial that reaches a height of around 30 cm. It features narrow, dark green leaves that are undivided. Throughout early to late summer, it produces flat clusters of flowerheads measuring 1.5-2 cm in diameter. Each flowerhead consists of pure white ray florets surrounding grey-green-yellow centers.
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, Clay, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- South-facing, North-facing, East-facing, West-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H7
Plant details
- Plant type
- Herbaceous Perennial
- Habit
- Clump forming
- Foliage
- Deciduous
- Height
- 0.1-0.5 metres
- Spread
- 0.1-0.5 metres
- Time to full height
- 2-5 years
- Suggested uses
- City and courtyard gardens, Cottage and informal garden, Wildlife gardens
Care notes
- Cultivation
- Grows best in moist but well-drained soil in sun or partial shade in an open position
- Pruning
- No pruning required, but deadheading will prolong the flowering season
- Propagation
- Propagate by division in spring
- Pest resistance
- May be susceptible to aphids
- Disease resistance
- May be susceptible to powdery mildews