Overwintering guide
How to overwinter small-flowered alumroot
Winter watering
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
The mistake that kills small-flowered alumroot in winter
Cutting small-flowered alumroot 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 small-flowered alumroot care
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- Full small-flowered alumroot care guide
- Small-flowered alumroot temperature range
- How often to water small-flowered alumroot
- How to prune small-flowered alumroot
- Common small-flowered alumroot problems & fixes
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Overwintering small-flowered alumroot — FAQ
Does small-flowered alumroot need to come indoors for winter?
Small-flowered alumroot is hardy to roughly USDA zone 4 — winter lows around -34°C. That means it can stay outside all winter in most temperate gardens. Small-flowered alumroot 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 small-flowered alumroot for winter?
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
How often should I water small-flowered alumroot in winter?
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
What kills small-flowered alumroot over winter?
Cutting small-flowered alumroot 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.