Although geraniums are generally grown as annuals because they aren't frost-tolerant, you can overwinter them indoors using a very simple technique.
AMES, Iowa -- Cindy Haynes, associate professor and extension specialist in horticulture at Iowa State University, offers these tips on how to start geranium seeds before planting them outside.
The first week of November shuffles in the rain and storms of autumn, so take this as your cue to stop procrastinating and protect tender plants that you want to survive over the winter.