Overwintering guide
How to overwinter indian mustard 'tendergreen'
Winter watering
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
The mistake that kills indian mustard 'tendergreen' in winter
Cutting indian mustard 'tendergreen' 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 indian mustard 'tendergreen' care
Overwintering indian mustard 'tendergreen' — FAQ
Does indian mustard 'tendergreen' need to come indoors for winter?
Indian Mustard 'Tendergreen' is hardy to roughly USDA zone 2 — winter lows around -46°C. That means it can stay outside all winter in most temperate gardens. Indian Mustard 'Tendergreen' 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 indian mustard 'tendergreen' for winter?
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
How often should I water indian mustard 'tendergreen' in winter?
No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.
What kills indian mustard 'tendergreen' over winter?
Cutting indian mustard 'tendergreen' 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.