|thanks for your tips on winterizing my arborvitae shrubs that are planted in terra cotta containers. When I place them in a styrofoam lined box ouside, should the box be as tall as the shrub or should the shrub be exposed to the elements?
Thanks again in advance.
|The shrub itself is winter hardy - the roots are what you need to protect. In a container they can freeze solid. So, just set the container in the box and leave the shrub itself out in the open. Winter winds can dessicate foliage so set your plant where it will be protected from the wind, and/or spray it with Wilt-Pruf to help it get through the winter months. Hope this clarifies things for you.|