Color: Purple Flower Size: 3-4″ (8-10cm) Flowering Period: June-Sept Mature Height: 3-6′(1-2m) Pruning Group: C Planting Aspect: Sun/ Partial Shade USDA Zone: 3 Foliage: Deciduous Suitable As Ground Cover: Yes Price Group: 2 About Sapphire Indigo™ A cross between integrifolia Olgae and The President, this variety was awarded a bronze medal at Plantarium 2004 in Boskoop. A profuse bloomer with dark purple-blue flowers throughout the summer. The non-clinging stems makes this variety extremely effective clamoring through shrubs. Pruning group C.