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