Color: Blue Flower Size: 4-6″ (10-15cm) Flowering Period: May, June & Sept Mature Height: 6-9′(2-3m) Pruning Group: B1 Planting Aspect: Sun/ Partial Sun / Bright Shade USDA Zone: 4 Foliage: Deciduous Suitable As Ground Cover: Yes Price Group: Standard About Teshio This light lavender blue double from Japan has 4-6″(10-15cm) blooms in May and June and sometimes again in September. Mature height 6-9′ (2-2.5m) Pruning group B1