Symphyotrichum novae-angliae 'Purple Dome'
New York aster
A compact variety with violet-purple flowers that have yellow centres from August to October and lance-shaped, mid-green leaves. This is a pretty Michaelmas daisy that will brighten up a mixed or herbaceous border after other perennials have done their bit. It will also flourish in both sun or dappled shade.
How to care for Symphyotrichum novae-angliae Purple Dome:
Choose a location with full sun to ensure the best flowering.
Asters prefer well-drained, loamy soil rich in organic matter. If your soil is heavy or clay-based, incorporate compost or well-rotted manure to improve drainage and fertility.
Space the plants about 45-60cm (18-24in) apart to give them room to grow and ensure good air circulation, which helps prevent diseases.
Insert twiggy prunings early in the season to provide invisible and effective support.
To encourage bushier growth and more flowers, pinch back the stems when the plants are about 15-20cm (6-8in) tall - you can also remove spent flowers to extend the blooming period.
Leave top growth on through the winter to provide protection and valuable food for birds and insects, or cut down in autumn if the plants are particularly spent.
Apply a thick 5-7cm (2-3in) mulch around the base of the plant in the spring, taking care not to cover the crown.
Asters prefer well-drained, loamy soil rich in organic matter. If your soil is heavy or clay-based, incorporate compost or well-rotted manure to improve drainage and fertility.
Space the plants about 45-60cm (18-24in) apart to give them room to grow and ensure good air circulation, which helps prevent diseases.
Insert twiggy prunings early in the season to provide invisible and effective support.
To encourage bushier growth and more flowers, pinch back the stems when the plants are about 15-20cm (6-8in) tall - you can also remove spent flowers to extend the blooming period.
Leave top growth on through the winter to provide protection and valuable food for birds and insects, or cut down in autumn if the plants are particularly spent.
Apply a thick 5-7cm (2-3in) mulch around the base of the plant in the spring, taking care not to cover the crown.
Flowering period:
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
Eventual height:
0.6m
Eventual spread:
0.6m
Position:
Full sun / light shade
Rate of growth:
Fast-growing
Soil:
Moderately fertile, moist but well-drained soil, or peat-free general purpose compost
Hardiness:
Fully hardy
-
This perennial dies back to below ground level each year in autumn, then fresh new growth appears again in spring.
3 × 9cm pots
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9cm pot
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