Superbells Double Chiffon produces adorable, soft yellow, double flowers throughout the season. Superbells are Proven Winners’ newest calibrachoas. They’re the ones covered with hundreds of flowers from early spring all the way through those first light frosts. Superbells aren’t sticky, perk right back up after it rains, and stay compact and bushy even when we are stressed. Just 6 – 10″ tall, their long, long, trailing branches cascade over the sides of hanging baskets and other containers, and spread over flower beds. Hummingbirds are cuckoo about them!