Overwintering guide
How to overwinter spencer mixed sweet pea
Winter watering
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
The mistake that kills spencer mixed sweet pea in winter
Cutting spencer mixed sweet pea 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 spencer mixed sweet pea care
- Overwintering sweet pea — the species this cultivar belongs to
- Full spencer mixed sweet pea care guide
- Spencer Mixed sweet pea temperature range
- How often to water spencer mixed sweet pea
- How to prune spencer mixed sweet pea
- Common spencer mixed sweet pea problems & fixes
- Best plant identifier apps — tested and ranked
Overwintering spencer mixed sweet pea — FAQ
Does spencer mixed sweet pea need to come indoors for winter?
Spencer Mixed sweet pea is hardy to roughly USDA zone 2 — winter lows around -46°C. That means it can stay outside all winter in most temperate gardens. Spencer Mixed sweet pea 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 spencer mixed sweet pea for winter?
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
How often should I water spencer mixed sweet pea in winter?
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
What kills spencer mixed sweet pea over winter?
Cutting spencer mixed sweet pea 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.