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Overwintering guide

How to overwinter great yellow gentian

Verdict
Stays outside
When
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
Hardiness
Great Yellow Gentian is hardy to roughly USDA zone 4 — winter lows around -34°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 great yellow gentian in winter

Cutting great yellow gentian 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 great yellow gentian care

Overwintering great yellow gentian — FAQ

Does great yellow gentian need to come indoors for winter?

Great Yellow Gentian is hardy to roughly USDA zone 4 — winter lows around -34°C. That means it can stay outside all winter in most temperate gardens. Great Yellow Gentian 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 great yellow gentian for winter?

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

How often should I water great yellow gentian in winter?

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

What kills great yellow gentian over winter?

Cutting great yellow gentian 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.