These pretty, purple perennials are resilient and cold-hardy. Mexican petunias are fast-growing plants native to warm parts of South America and Mexico, but they can tolerate cool temperatures in ...

Blooming purple and white petunias grow in the garden. - Just dance/Shutterstock Why buy new petunias (Petunia x hybrida) every spring when you can turn one plant into many? The secret is cuttings.

Water petunias when the top inch of soil feels dry to the touch. Large plants and potted petunias will need more water than small plants growing in gardens. Deep watering early in the morning keeps ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." It’s easy to see why petunias are among the most popular flowers for home gardeners: They are abundant, ...