Is it okay to allow your potted geranium to bloom in the winter time? Absolutely! In fact, even though your geranium will keep growing if kept between 45 and 70 °F, it doesn’t need as much water as it does in the summertime.
Water thoroughly once a month. If you have the room, bring your potted geraniums into the cooler part of your home (an unheated atrium is ideal) and enjoy the blooms that will survive until spring! For more geranium care ideas, go here.