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