great number of violet flowers of symphyotrichum dumosum

array aster autumn bed blossom botany bush bushy button daisies disc dumosum dumosus fall flora florets flower flowers foliage garden great green greenery head herb herbaceous leaf leafage mauve michaelmas nature new novibelgii number october ornamental outdoors park perennial petal plant purple ray rice season september shrub subshrub symphyotrichum vegetation violet york