Petunias need at least six hours of full sun daily to keep blooming—too much shade will halt their flowers. Regular deadheading and occasional pruning help petunias regrow fuller and rebloom more ...

Multi-colored petunias planted in the ground, spilling out of a pot turned on its side - Charinporn Thayot/Getty Images Petunias are a favorite of gardeners for their versatility. They come in a wide ...