Growli

Overwintering guide

How to overwinter black-eyed susan 'goldsturm'

Verdict
Stays outside
When
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
Hardiness
Black-eyed Susan 'Goldsturm' 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 black-eyed susan 'goldsturm' in winter

Cutting black-eyed susan 'goldsturm' 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 black-eyed susan 'goldsturm' care

Overwintering black-eyed susan 'goldsturm' — FAQ

Does black-eyed susan 'goldsturm' need to come indoors for winter?

Black-eyed Susan 'Goldsturm' is hardy to roughly USDA zone 3 — winter lows around -40°C. That means it can stay outside all winter in most temperate gardens. Black-eyed Susan 'Goldsturm' 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 black-eyed susan 'goldsturm' for winter?

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

How often should I water black-eyed susan 'goldsturm' in winter?

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

What kills black-eyed susan 'goldsturm' over winter?

Cutting black-eyed susan 'goldsturm' 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.