Annual plant arrangement ball ball shaped beauty in nature bloom blossom botany bouquet bright closeup colors colourful colours drumstick primrose flower flowering plant fresh grass groundcover Herbaceous plant horizontal petal plant Plant community primrose Primula denticulata purple shrub appearances box-like buildings concrete contemporary contrast contrasting cool courtyard dark decorated Designs distinctive elements exterior external flowers gardens greenery high levels light linear lines modern plants shade shadows shelter sheltered Sizes structures style styles tree variety views walls