Aster 'Cassandra'
Clump-forming perennial about 60-80cm tall, with slender bright green leaves, and bearing abundant small, pale lilac-blue flowers with creamy-yellow centres, produced above upright stems, from summer to autumn
Size
Ultimate height
0.5–1 metresTime to ultimate height
2–5 yearsUltimate spread
0.5–1 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Purple Blue | Green | ||
| Autumn | Purple Blue | Green | ||
| Winter |
Position
- Full sun
Aspect
South–facing or West–facing or East–facing
Exposure
Exposed or Sheltered Hardiness
H7Botanical details
- Family
- Asteraceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Clump forming
- Genus
Aster can be perennials, annuals or subshrubs, mostly with narrow leaves, and solitary or clustered, daisy-like flowers
- Name status
Unresolved
How to grow
Cultivation
Grow in moist but well-drained, moderately fertile soil in an open, sunny position. See aster cultivation
Propagation
Propagate by division in spring or root softwood basal cuttings in spring
Suggested planting locations and garden types
- City and courtyard gardens
- Coastal
- Cottage and informal garden
- Patio and container plants
- Cut flowers
- Flower borders and beds
Pruning
Deadhead spent flowers to tidy, cut back stem close to the ground in late autumn
Pests
May be susceptible to leaf and bud eelworms, slugs and snails
Diseases
May be susceptible to Verticillium wilt, powdery mildews and grey moulds
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