Overwintering guide
How to overwinter forsythia 'show off'
Winter watering
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
The mistake that kills forsythia 'show off' in winter
Cutting forsythia 'show off' 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 forsythia 'show off' care
Overwintering forsythia 'show off' — FAQ
Does forsythia 'show off' need to come indoors for winter?
Forsythia 'Show Off' is hardy to roughly USDA zone 5 — winter lows around -29°C. That means it can stay outside all winter in most temperate gardens. Forsythia 'Show Off' 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 forsythia 'show off' for winter?
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
How often should I water forsythia 'show off' in winter?
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
What kills forsythia 'show off' over winter?
Cutting forsythia 'show off' 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.