Geraniums are one of the most popular container and garden plants. You just can’t beat their bright colors and sturdy, well-shaped foliage. At the garden center, geraniums tend to come in larger sizes, which make them more expensive than other summer annuals.

Unlike many of their peers, geraniums can easily be stored over the winter and enjoyed again next year. So if you hate to see your lovely geraniums killed by frost this fall, here’s how to go about overwintering them indoors.

Methods of Overwintering Geraniums
There are three ways to make geraniums last through the winter:

1. Overwinter inside as potted plants.
2. Store the dormant, bare roots.
3. Propagate cuttings to make new plants.

https://www.todayshomeowner.com/how-to-grow-geraniums-over-the-winter/