Overwintering guide
How to overwinter nicholas hakone grass
Winter watering
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
The mistake that kills nicholas hakone grass in winter
Cutting nicholas hakone grass 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 nicholas hakone grass care
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- Full nicholas hakone grass care guide
- Nicholas Hakone Grass temperature range
- How often to water nicholas hakone grass
- How to prune nicholas hakone grass
- Common nicholas hakone grass problems & fixes
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Overwintering nicholas hakone grass — FAQ
Does nicholas hakone grass need to come indoors for winter?
Nicholas Hakone Grass is hardy to roughly USDA zone 5 — winter lows around -29°C. That means it can stay outside all winter in most temperate gardens. Nicholas Hakone Grass 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 nicholas hakone grass for winter?
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
How often should I water nicholas hakone grass in winter?
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
What kills nicholas hakone grass over winter?
Cutting nicholas hakone grass 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.