Overwintering guide
How to overwinter crocus tommasinianus 'ruby giant'
Winter watering
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
The mistake that kills crocus tommasinianus 'ruby giant' in winter
Cutting crocus tommasinianus 'ruby giant' 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 crocus tommasinianus 'ruby giant' care
- Overwintering tommies crocus — the species this cultivar belongs to
- Full crocus tommasinianus 'ruby giant' care guide
- Crocus tommasinianus 'Ruby Giant' temperature range
- How often to water crocus tommasinianus 'ruby giant'
- How to prune crocus tommasinianus 'ruby giant'
- Common crocus tommasinianus 'ruby giant' problems & fixes
- Best plant identifier apps — tested and ranked
Overwintering crocus tommasinianus 'ruby giant' — FAQ
Does crocus tommasinianus 'ruby giant' need to come indoors for winter?
Crocus tommasinianus 'Ruby Giant' is hardy to roughly USDA zone 3 — winter lows around -40°C. That means it can stay outside all winter in most temperate gardens. Crocus tommasinianus 'Ruby Giant' 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 crocus tommasinianus 'ruby giant' for winter?
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
How often should I water crocus tommasinianus 'ruby giant' in winter?
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
What kills crocus tommasinianus 'ruby giant' over winter?
Cutting crocus tommasinianus 'ruby giant' 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.