Petunia Plant. Why do i need companion plants to grow petunias? From late spring to summer, bright, vivid blooms of various colors make a show in your garden.
To grow petunias directly in a bed or border, be sure to add plenty of organic matter at planting time. You may also be interested in petunia seeds. Petunia, genus of about 35 species of flowering plants in the nightshade family ( solanaceae ), native to south america.