Overwintering Geraniums – if your geraniums have not been totally damaged by frost yet, try one of the following methods to winter them over.
-Hang geraniums by the roots in the basement for the winter. If your basement is not too warm – ideally in the 40 – 50 degree range, this method can work well. Dig up your plants, cut them back about 1/3 to ½ of their height, and hang them from beams or rafters. They can be potted up in the spring and placed in a sunny window until the danger of frost is over, at which time they can be planted outside.
-Geraniums can also be treated as an indoor house plant. Carefully dig up and lift your plants from the flower bed (ideally before frost). Remove about 1/3 of the top growth and pot them in clean pots. Place in a sunny window where they will not get too hot (50 – 60 degrees would be perfect) Water thoroughly after planting, then allow the soil to dry slightly between waterings. Tip cuttings can be taken from these plants in early spring and rooted in water or sand if leaves are misted regularly to prevent wilting.