Superbena^® Cobalt^™ displays vigorous dark blue-purple flowers clustered in large umbels covering deep green foliage. With a mounding-trailing habit, they function as both spillers and fillers in combination planters and are best planted at the front of landscape beds. It is heat tolerant, resists deer, and attracts butterflies.

• 6-12 inches tall and 18-30 inches wide at maturity
• Annual except in zones 8-11
• Plant in part to full sun (4+ hours daily)
• Space plants 10-14 inches apart for best results
• Produces dark blue-purple flowers from planting to frost
• Maintains green foliage mounding, trailing habit spring to frost
• Great for borders, containers, edging, landscapes, mass planting
• Attracts butterflies and resists deer
• Heat and drought tolerant, long blooming, deadheading not necessary, fall interest

The Eco+Grande features nutrients embedded in the container walls, which help plants grow bigger and faster throughout the season when planted in the ground. Be sure to remove the tabs from the container before planting. If you choose to plant in a container, we recommend taking the plant out of the Eco+Grande, breaking it apart, and mixing it into the soil at the time of planting. When the Proven Winners Eco+Grande container is discarded in the garbage can, it will naturally break down faster in a landfill than a traditional petroleum made container. The container will get smaller and smaller until microbes consume it, turning it back into an inert organic product. Learn more about this in our blog

Care: Fertilize weekly with Proven Winners Water Soluble Plant Food for best performance. Prune to shape as desired throughout the season.

Shipping Info:

• Enjoy free shipping on orders over $125
• Size at shipping varies by the season and plant
  • Annuals are 4-8" tall at shipment

Read our guide to get started with planning a garden