Overwintering guide
How to overwinter crown prince squash
Winter watering
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
The mistake that kills crown prince squash in winter
Cutting crown prince squash 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 crown prince squash care
- Overwintering atlantic giant pumpkin — the species this cultivar belongs to
- Full crown prince squash care guide
- Crown Prince Squash temperature range
- How often to water crown prince squash
- How to prune crown prince squash
- Common crown prince squash problems & fixes
- Best plant identifier apps — tested and ranked
Overwintering crown prince squash — FAQ
Does crown prince squash need to come indoors for winter?
Crown Prince Squash is hardy to roughly USDA zone 3 — winter lows around -40°C. That means it can stay outside all winter in most temperate gardens. Crown Prince Squash 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 crown prince squash for winter?
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
How often should I water crown prince squash in winter?
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
What kills crown prince squash over winter?
Cutting crown prince squash 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.