How To Care For Hydrangeas In Zone 6. In-ground Hydrangeas Winter Protection. For the slow-release fertilizer cover it lightly with soil.
A north- or east-facing site where temperatures remain somewhat constant is a better choice than a spot on the south and west side of your property which will heat up in the winter sun and can cause buds to open prematurely and be vulnerable to. In colder zones most hydrangeas perform well in full sun. Gently loosen the roots then plant using plenty of rich soil.
Gently loosen the roots then plant using plenty of rich soil.
Another method for protecting hydrangeas is to wrap them loosely in foam such as egg-crate foam or insulation material such as the foil insulation used to mail climate-controlled packages. Gently loosen the roots then plant using plenty of rich soil. In-ground Hydrangeas Winter Protection. Its important to make sure the roots of the hydrangea get watered at the time of planting so start by setting the hydrangeas root ball in the hole you dug.