Conoclinium coelestinum 'Cori'
A compact, vigorous, rhizomatous deciduous herbaceous perennial with oval-shaped, dark green toothed foliage and showy, fluffy light blue-purple flowers appearing in the summer through to autumn. Prefers a moist to boggy location alongside ponds and streams. May become a nuisance if not kept in check
Size
Ultimate height
0.5–1 metresTime to ultimate height
1–2 yearsUltimate spread
0.5–1 metresGrowing conditions
Moisture
Moist but well–drained, Poorly–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Blue Purple | Green | ||
| Autumn | Blue Purple | Green | ||
| Winter |
Position
- Full sun
- Partial shade
Aspect
East–facing or North–facing or South–facing or West–facing
Exposure
Sheltered Hardiness
H4Botanical details
- Family
- Asteraceae
- Native to the UK
- No
- Foliage
- Deciduous
- Habit
- Bushy
- Name status
Accepted
How to grow
Cultivation
Grow in very moist to wet soil in sun or partial shade. Plants may require support. Plants have the potential to become a nuisance if not kept in check, but drier soils will slow growth
Propagation
Propagate by stem cuttings
Suggested planting locations and garden types
- Cottage and informal garden
- Coastal
- Banks and slopes
- Flower borders and beds
Pruning
No pruning required
Pests
May be susceptible to leaf miner and aphids
Diseases
May be susceptible to powdery mildews
Get involved
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