I purchased this plant in the summer and it has flowered well. It has been kept in a pot. Now that the cold weather is coming, should I leave it outside or bring it into the garage as I do with geraniums?
You can allow the plant to go dormant for the winter. I would store it in the same area as the geraniums.
Check to make sure the soil doesn't dry completely during the winter months. You can add a small amount of water each month.
I like to make sure the winter pots soil doesn't crack.
Adding some mulch on the top of the pot will help.