Superbells® Double White Double Calibrachoa

Superbells® Double White is a mounding, trailing calibrachoa with fully double white flowers. The [Proven Winners cultivar profile](https://c5.provenwinners.com/plants/calibrachoa/superbells-double-white-double-calibrachoa-calibrachoa) lists a 6–12 inch height, 12–24 inch spread, spring-to-fall flowering, and USDA zones 9a–11b. ## Flowers and placement The bright blooms bring a clean contrast to mixed annual containers and hanging baskets. Let the stems trail over the edge of a planter, or use the plant to soften a sunny window box. Calibrachoa is a tender perennial typically grown as a seasonal annual in colder climates. ## Growing conditions Provide full sun to part sun in a fertile, freely draining potting mix. [NCSU Extension](https://plants.ces.ncsu.edu/plants/calibrachoa-x-hybrida/) recommends moist, organically rich soil for calibrachoa while emphasizing good drainage; [Illinois Extension](https://extension.illinois.edu/flowers/calibrachoa) advises regular watering and feeding for container-grown plants. Keep the root zone evenly moist but avoid leaving the pot in standing water. ## Maintenance Spent flowers are quickly covered by new growth, so deadheading is not needed. Feed regularly during active growth, following label directions. Check hanging baskets frequently in warm weather and trim any overlong stems lightly to maintain an even shape.