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Overwintering guide

How to overwinter mustard greens 'southern giant curled'

Verdict
Stays outside
When
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
Hardiness
Mustard Greens 'Southern Giant Curled' is hardy to roughly USDA zone 2 — winter lows around -46°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 mustard greens 'southern giant curled' in winter

Cutting mustard greens 'southern giant curled' 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 mustard greens 'southern giant curled' care

Overwintering mustard greens 'southern giant curled' — FAQ

Does mustard greens 'southern giant curled' need to come indoors for winter?

Mustard Greens 'Southern Giant Curled' is hardy to roughly USDA zone 2 — winter lows around -46°C. That means it can stay outside all winter in most temperate gardens. Mustard Greens 'Southern Giant Curled' 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 mustard greens 'southern giant curled' for winter?

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

How often should I water mustard greens 'southern giant curled' in winter?

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

What kills mustard greens 'southern giant curled' over winter?

Cutting mustard greens 'southern giant curled' 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.