Overwintering guide
How to overwinter aster 'hella lacy'
Winter watering
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
The mistake that kills aster 'hella lacy' in winter
Cutting aster 'hella lacy' hard back in autumn "to tidy up". That removes the growth that shelters the crown, and on some plants removes next season's flower buds entirely.
More aster 'hella lacy' care
Overwintering aster 'hella lacy' — FAQ
Does aster 'hella lacy' need to come indoors for winter?
Aster 'Hella Lacy' is hardy to roughly USDA zone 4 — winter lows around -34°C. That means it can stay outside all winter in most temperate gardens. Aster 'Hella Lacy' is properly hardy and overwinters outside without fuss. Tidy away anything dead or diseased, apply a mulch over the crown to steady soil temperatures, and otherwise leave it alone — many hardy plants actually need a cold period to flower and grow well the following year. Save hard pruning for the right season rather than doing it in autumn.
When should I move aster 'hella lacy' for winter?
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
How often should I water aster 'hella lacy' in winter?
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
What kills aster 'hella lacy' over winter?
Cutting aster 'hella lacy' hard back in autumn "to tidy up". That removes the growth that shelters the crown, and on some plants removes next season's flower buds entirely.