purple balloon flower in bloom

garden platycodon balloon flower bloom blossom flora nature plant summer background beauty closeup color floral green natural petal purple blue violet beautiful leaf spring bellflower blooming botanical grandiflorus botany grandiflorum largeflowered ornamental perennial bud horticulture blossoming campanulaceae colors campanula grandiflora chinese bed japanese naturalistic gardening flowers vegetation superb bell rock stone foilage