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Symphyotrichum laeve 'Calliope' (Smooth aster 'Calliope')
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2 hours care
per year
per year
1.5m
Max height
Max height
0.6m
Max spread
Max spread
2-5 years
To maturity
To maturity
Plant details
Botanical name
Symphyotrichum laeve 'Calliope'
Other names
Smooth aster 'Calliope', Smooth blue aster 'Calliope', Michelmas daisy 'Calliope', Symphyotrichum laeve 'Calliope', Aster laevis 'Calliope'
Genus
Symphyotrichum Symphyotrichum
Variety or Cultivar
'Calliope' _ 'Calliope' is a bushy to open, clump-forming, herbaceous perennial with linear, glossy, dark green leaves and purple-black stems bearing pale lilac-blue flowers from late summer to mid-autumn.
Symphyotrichum laeve 'Calliope' is: Deciduous
Habit
Bushy, Cushion or Mound Forming, Open stems, Rounded
Flower
Pale-purple in Summer; Pale-purple in Autumn
Foliage
Dark-green in Spring; Dark-green in Summer; Dark-green in Autumn
How to care
Watch out for
Specific pests
Aphids , Eelworms (leaf and bud) , Slugs , Snails Aphids , Eelworms (leaf and bud) , Slugs , Snails
Fusarium wilt , Grey mould , Leaf spot Fusarium wilt , Grey mould , Leaf spot
General care
Pruning
Cut back in late autumn. This cultivar can be cut or pinched back in early summer to encourage a bushier, compact form and later flowers.
Propagation methods
Division, Softwood cuttings
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Where to grow
Symphyotrichum laeve 'Calliope' (Smooth aster 'Calliope') will reach a height of 1.5m and a spread of 0.6m after 2-5 years.
Suggested uses
Beds and borders, Cottage/Informal, Flower Arranging, Wildlife
Cultivation
Plant in moderately fertile, moist soil in partial shade. Will tolerate full sun. May need staking.
Soil type
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Soil drainage
Well-drained, Moist but well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Partial Shade, Full Sun
Aspect
South, East, West
Exposure
Exposed, Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
Companion plants
We do not currently have companion plants added for this plant.
Botanical name
Symphyotrichum laeve 'Calliope'
Other names
Smooth aster 'Calliope', Smooth blue aster 'Calliope', Michelmas daisy 'Calliope', Symphyotrichum laeve 'Calliope', Aster laevis 'Calliope'
Genus
Symphyotrichum Symphyotrichum
Variety or Cultivar
'Calliope' _ 'Calliope' is a bushy to open, clump-forming, herbaceous perennial with linear, glossy, dark green leaves and purple-black stems bearing pale lilac-blue flowers from late summer to mid-autumn.
Native to
Garden origin
Foliage
Deciduous
Habit
Bushy, Cushion or Mound Forming, Open stems, Rounded
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Colour
Flower
Pale-purple in Summer; Pale-purple in Autumn
Foliage
Dark-green in Spring; Dark-green in Summer; Dark-green in Autumn
How to care
Watch out for
Specific pests
Aphids , Eelworms (leaf and bud) , Slugs , Snails
Specific diseases
Fusarium wilt , Grey mould , Leaf spot
General care
Pruning
Cut back in late autumn. This cultivar can be cut or pinched back in early summer to encourage a bushier, compact form and later flowers.
Propagation methods
Division, Softwood cuttings
Monthly care advice
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Where to grow
Symphyotrichum laeve 'Calliope' (Smooth aster 'Calliope') will reach a height of 1.5m and a spread of 0.6m after 2-5 years.
Suggested uses
Beds and borders, Cottage/Informal, Flower Arranging, Wildlife
Cultivation
Plant in moderately fertile, moist soil in partial shade. Will tolerate full sun. May need staking.
Soil type
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Soil drainage
Well-drained, Moist but well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Partial Shade, Full Sun
Aspect
South, East, West
Exposure
Exposed, Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
USDA zones
Zone 8, Zone 7, Zone 6, Zone 5, Zone 4, Zone 3
In order to add a note on this plant, please add this plant to your plant lists.
| This plant likes... | Garden match | |
| Soil types: | Chalky, Clay, Loamy, Sandy (will tolerate most soil types) | Tell us... |
| Soil drainage: | Well-drained, Moist but well-drained | Tell us... |
| Soil pH: | Acid, Alkaline, Neutral | Tell us... |
| Light: | Partial Shade, Full Sun | Tell us... |
| Aspect: | South, East, West | Tell us... |
| Exposure: | Exposed, Sheltered | Tell us... |
| Hardiness: | Hardy (H4) | Tell us... |
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