Incrediball® has been described as 'Annabelle' on steroids. Sturdy stems support massive white blooms in mid summer. The blooms finally fade to a lush jade green, which persists through frost. Six hours of morning sun is best, but it performs well in a wide range of light conditions. Prune back all the stems to around 2' in early spring. The plant grows 3-5' tall and is hardy to Zone 3.