Overwintering guide
How to overwinter gray goldenrod
Winter watering
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
The mistake that kills gray goldenrod in winter
Cutting gray goldenrod 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 gray goldenrod care
Overwintering gray goldenrod — FAQ
Does gray goldenrod need to come indoors for winter?
Gray Goldenrod is hardy to roughly USDA zone 3 — winter lows around -40°C. That means it can stay outside all winter in most temperate gardens. Gray Goldenrod 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 gray goldenrod for winter?
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
How often should I water gray goldenrod in winter?
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
What kills gray goldenrod over winter?
Cutting gray goldenrod 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.