About
Achillea ptarmica 'Noblessa' is a compact perennial reaching approximately 50 cm in height. It features finely dissected, grey-green leaves that create a dense ground cover prior to blooming. In spring and summer, sturdy, branching stems emerge, adorned with numerous small, double white flower clusters. This variety is notable for flowering in its first year.
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
- Chalk, Clay, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Well-drained, Moist but well-drained
- Aspect
- South-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, Prairie planting
Care notes
- Cultivation
- Grow in an open, sunny position in well-drained soil
- Pruning
- Deadhead regularly to prolong flowering
- Propagation
- Propagate by division in spring
- Pest resistance
- May be susceptible to aphids
- Disease resistance
- May be susceptible to powdery mildews