About
Aster amellus 'Sonora' is a robust perennial that forms dense clumps, reaching heights of 30 to 60 cm. Its leaves are narrow and oval, displaying a coarse hairiness on the upper surface and a grey-green hue. Throughout the months of August to October, the plant produces clusters of flowers measuring 6 cm across, featuring violet rays surrounding a yellow center.
About the genus
Aster includes perennials, annuals, and subshrubs, typically characterized by slender leaves and flowers that resemble daisies, either appearing alone or in clusters.
Growing conditions
- Sunlight
- Full sun
- Soil type
- Chalk, Loam, Sand
- Soil pH
- Neutral, Alkaline
- Soil moisture
- Moist but well-drained
- Aspect
- South-facing, West-facing, East-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H7
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
- Cottage and informal garden, Wildlife gardens, Coastal, City and courtyard gardens
Care notes
- Cultivation
- Grow in moisture retentive but well drained soil in full sun.
- Pruning
- Cut back after flowering
- Propagation
- Propagate by division or basal cuttings
- Pest resistance
- May be susceptible to slugs, snails, leaf and bud eelworms and aphids
- Disease resistance
- May be susceptible to fusarium wilt, grey moulds and leaf spot. Mildew resistant,