Color: Bicolor Flower Size: 5-7″ (12-18cm) Flowering Period: June-Sept Mature Height: 6-9′ (2-3m) Pruning Group: B2 Planting Aspect: Sun/ Partial Shade USDA Zone: 4 Foliage: Deciduous Suitable for Container: Yes Price Group: 2 About Julka Bold purple flowers with a bright red vein. The 5-7″ flowers are produced June through September on a 6-9′ (2-3m) plant. Pruning group B2