landscaping with an upright shrub with distrinctive evergreen foliage and clusters of showy powder blue grape like clusters

barberry barrier beale berry blue border botanical branch bright buds bunch bush china clusters coastal color colorful container evergreen flowers foliage fruit garden grape green japan japonica leaf leatherleaf leaves like mahonia natural ornamental outdoors plant powder privacy screen season shrub spiky spiny spires spring summer sunny upright wild yellow yellowish