Calibrachoa plants are the hottest, most sought-after blooming annual flowers you can get. These superbells look like small petunias, but they’re even easier to grow and more prolific. Calibrachoa flowers are usually two-toned with outer petals of one color and a different colored throat or center. Some are striped, while others have up to three colors on each flower.
Calibrachoa flowers grow best in full sun in well-drained soil and are star performers in hanging baskets, container gardens, and window boxes. They are heat-tolerant and will continue to bloom all summer if fertilized every few weeks. If your superbells start to get gangly, just snip them back and let them grow out. You can’t beat them for a profusion of color in sunny spots.