The best time to build a healthy root system is during cooler weather. Some of my shrubs froze last night. Frost damaged parts of shrubs should be selectively removed. Pruning out only damaged portions of a limb will improve the health of the shrub but should not encourage the development of new succulent growth. Shearing cuts will force shrubs to develop new succulent growth that is prone to injury should additional frosts or freezes occur later in the season.
Cold temperatures can damage most bedding plants, tropical plants, holiday plants and houseplants.
Any plant that can be damaged by frost should be covered or moved to a sheltered location. There are many types of material to cover plants but paper bags and cotton sheets work best. Plastic materials should be avoided because they can actually increase the damage caused by the freezing conditions. Here are a few additional tips to help your lawn make it through a cold snap. Don't mow your lawn immediately following a freeze.