Color: Blue Flower Size: 5-7″ (12-18cm) Flowering Period: May June & Sept Mature Height: 6-9′ (1-2m) Pruning Group: B2 Planting Aspect: Sun/ Partial Sun / Bright Shade USDA Zone: 4 Suitable For Container: Yes Foliage: Deciduous Price Group: Standard About Ramona Ramona AKA Hybrida Sieboldii has 5-7″ (12-18cm) lavender-blue flowers, from June to September. Mature height 6-9′ (2-3m). Pruning group B2.