Double-Potting Container Shrubs for Winter Root Protection

Insulating Roots of Thuja 'Holmstrup'

The plant is Thuja orientalis 'Holmstrup' (pronounced "THEW-ya"). It can reach 6–8 ft in ground, smaller in pots. Double-potting:

1. Buy a pot at least 6 inches wider with drain hole.
2. Fill bottom with soil conditioner.
3. Place current pot inside; fill gap with more soil conditioner until rims level.

Roots stay protected all winter; slip inner pot out in spring. Eventually use the larger pot as the next home.