Superbells® Double Blue Double Calibrachoa

Superbells® Double Blue is a mounding, trailing calibrachoa with abundant double flowers in blue-purple shades. The [Proven Winners cultivar profile](https://c4.provenwinners.com/plants/calibrachoa/superbells-double-blue-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 Use its cascading stems in hanging baskets, window boxes, or patio containers where the double blooms can be seen up close. The blue and purple tones combine well with silver foliage, white flowers, or warm yellow accents. Calibrachoa is a tender perennial generally grown as an annual in regions with cold winters. ## Growing conditions Give it full sun to part sun and a fertile, well-drained potting mix. [NCSU Extension](https://plants.ces.ncsu.edu/plants/calibrachoa-x-hybrida/) describes calibrachoa as suited to moist, organically rich soil with good drainage; [Illinois Extension](https://extension.illinois.edu/flowers/calibrachoa) recommends regular watering and feeding, particularly in containers. Let the mix surface dry slightly between thorough waterings and prevent standing water around the roots. ## Maintenance Feed regularly during active growth according to label directions. The flowers are self-cleaning, so routine deadheading is unnecessary. If stems stretch or become uneven, trim them lightly and continue steady watering and feeding.