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