Symphyotrichum cordifolium 'Sweet Lavender'
blue wood 'Sweet Lavender'
A clump-forming perennial to 1.2m tall, with dark green leaves. Open, arching sprays of small, lavender-blue flowers 2cm wide, on lax stems appear from late summer through until the autumn
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Size
Ultimate height
1–1.5 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Moist but well–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 South–facing or West–facing
Exposure
Exposed or Sheltered Hardiness
H7Botanical details
- Family
- Asteraceae
- Native to the UK
- No
- Foliage
- Deciduous
- Habit
- Clump forming
- Genus
Symphyotrichum includes around 90 species of annuals, biennials and perennials, mostly spread through the Americas, that were formerly included within the genus Aster. Leaves are simple, lance-shaped and entire, but it is their daisy-like flowerheads that they are grown for; central disc florets are typically yellow, surrounded by strap-shaped ray florets in shades of pink, blue, purple or white
- Name status
Unresolved
How to grow
Cultivation
Grow in moderately fertile, moist but well-drained soil in full sun or light shade. Stake plants in early spring. See staking perennials. and aster cultivation for further advice
Propagation
Propagate by division in spring or root softwood basal cuttings in spring; division can be done every third year to maintain vigour
Suggested planting locations and garden types
- Coastal
- Cottage and informal garden
- Wildlife gardens
- Prairie planting
- Wildflower meadow
- Flower borders and beds
Pruning
Cut stems close to the ground in late autumn
Diseases
May be susceptible to verticillium wilt, powdery mildews and grey moulds
Get involved
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