With all the fabulous multi-colored and multi-patterned petunias out there, sometimes you just need a bold, solid-colored flower to pull everything together. 'Main Stage Violet' petunia fits that description, growing about a foot tall, and trailing up to 3 feet long. A standout in container planters and hanging baskets, this petunia performs best when grown in full sun, and is watered and fertilized regularly.