Petunias are great for creating hanging basket displays, with some varieties such as
Petunia Surfinia trailing up to 90cm (36"). Although they are annual plants, lasting only one season, they're inexpensive, easy to care for and will grow quickly to provide your garden with a splash of summer colour!
Although mainly suited to baskets, varieties such as
Petunia Ramblin will produce a mounded structure that also makes them suitable for growing in containers and even borders.