Overwintering guide
How to overwinter southern wild rice
Winter watering
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
The mistake that kills southern wild rice in winter
Cutting southern wild rice 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 southern wild rice care
Overwintering southern wild rice — FAQ
Does southern wild rice need to come indoors for winter?
Southern Wild Rice is hardy to roughly USDA zone 6 — winter lows around -23°C. That means it can stay outside all winter in most temperate gardens. Southern Wild Rice 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 southern wild rice for winter?
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
How often should I water southern wild rice in winter?
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
What kills southern wild rice over winter?
Cutting southern wild rice 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.