Several options are available to overwinter a favorite geranium. The first is to cut it back
and pot it up as a houseplant for the winter to replant outside in the spring. The second is to
pull it up, brush off any clinging soil, and hang it upside down in a cool, humid basement
until replanting in spring. Or, you can cut 4-inch lengths of new stem and put them in water or
damp vermiculite to root. Once rooted, transfer to individual pots and treat as houseplants.