a caespitose herbaceous perennial is aster alpinus

flower nature plant beautiful green blossom background summer garden alpine purple flora bloom blue beauty violet aster bright floral season closeup blooming alpinus colorful macro spring decorative petal wildflower perennial autumn daisy park outdoors natural gardening vibrant petals rock ornamental meadow asters alps wild pink yellow dunkle schone caespitose herbaceous grows 10-35 tall color may indigo white