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