Growli

Overwintering guide

How to overwinter moon and stars watermelon

Verdict
Stays outside
When
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
Hardiness
Moon and Stars Watermelon is hardy to roughly USDA zone 3 — winter lows around -40°C. That means it can stay outside all winter in most temperate gardens.

Winter watering

No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.

The mistake that kills moon and stars watermelon in winter

Cutting moon and stars watermelon 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 moon and stars watermelon care

Overwintering moon and stars watermelon — FAQ

Does moon and stars watermelon need to come indoors for winter?

Moon and Stars Watermelon is hardy to roughly USDA zone 3 — winter lows around -40°C. That means it can stay outside all winter in most temperate gardens. Moon and Stars Watermelon 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 moon and stars watermelon for winter?

Tidy and mulch in late autumn; leave the plant undisturbed until spring.

How often should I water moon and stars watermelon in winter?

No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.

What kills moon and stars watermelon over winter?

Cutting moon and stars watermelon 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.