Caring for Petunias » Watering, fertilizing, cutting and more How often should petunias be watered? When and how to repot petunias? When and how to prune petunias What diseases affect the petunia? What should be considered for optimal fertilization of petunias? Can petunias be overwintered? Help the development of the site, sharing the article with friends! Help the development of the site, sharing the article with friends! Category: Indoor plants