Overwintering guide
How to overwinter hyacinthus orientalis 'delft blue'
Winter watering
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
The mistake that kills hyacinthus orientalis 'delft blue' in winter
Cutting hyacinthus orientalis 'delft blue' 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 hyacinthus orientalis 'delft blue' care
- Overwintering hyacinth — the species this cultivar belongs to
- Full hyacinthus orientalis 'delft blue' care guide
- Hyacinthus orientalis 'Delft Blue' temperature range
- How often to water hyacinthus orientalis 'delft blue'
- How to prune hyacinthus orientalis 'delft blue'
- Common hyacinthus orientalis 'delft blue' problems & fixes
- Best plant identifier apps — tested and ranked
Overwintering hyacinthus orientalis 'delft blue' — FAQ
Does hyacinthus orientalis 'delft blue' need to come indoors for winter?
Hyacinthus orientalis 'Delft Blue' is hardy to roughly USDA zone 4 — winter lows around -34°C. That means it can stay outside all winter in most temperate gardens. Hyacinthus orientalis 'Delft Blue' 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 hyacinthus orientalis 'delft blue' for winter?
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
How often should I water hyacinthus orientalis 'delft blue' in winter?
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
What kills hyacinthus orientalis 'delft blue' over winter?
Cutting hyacinthus orientalis 'delft blue' 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.