Overwintering guide
How to overwinter nandina harbour dwarf
Winter watering
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
The mistake that kills nandina harbour dwarf in winter
Cutting nandina harbour dwarf 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 nandina harbour dwarf care
Overwintering nandina harbour dwarf — FAQ
Does nandina harbour dwarf need to come indoors for winter?
Nandina Harbour Dwarf is hardy to roughly USDA zone 6 — winter lows around -23°C. That means it can stay outside all winter in most temperate gardens. Nandina Harbour Dwarf 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 nandina harbour dwarf for winter?
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
How often should I water nandina harbour dwarf in winter?
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
What kills nandina harbour dwarf over winter?
Cutting nandina harbour dwarf 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.