white double flower of paeonia lactiflora cultivar casablanca close-up. flowering peony in garden

white bloom flora plant garden blooming nature floral flower blossom paeonia peony summer double lactiflora bright peonies closeup casablanca romantic ornamental perennial petals anemone cultivar cultivars paeoniaceae blooms botanic bush fresh herbaceous greenery spring valentine elegance tender pastel leaf soft green botany rose pink magenta freshness foliage background park