Watering in the winter depends on the weather. If we have copious amounts of rain then watering isn’t necessary. If seasonal rain is absent or more spread out, a deep watering every 4-5 days is recommended. For potted outdoor plants, make sure to water very thoroughly before a freeze (less than 30 degrees Fahrenheit). When temperatures are cooler (50 degrees or under), water less than when it’s warmer. Lastly, if there's a lot of wind, plants will dry out faster and need to be watered more frequently.