symphyotrichum novi-belgii almira blue flowering plant, beautiful summer autumn rich petal flowers in bloom

aster flower bloom blue purple symphyotrichum novibelgii almira michaelmas daisy york autumn summer fall season yellow violet plant bush shrub green leaf foliage petal bright color colorful group flowers bunch bouquet blooming blossom blossoming closeup detail macro daylight outdoors botany botanic botanical flora floral nature growth asteraceae ornamental garden parkland novi-belgii flowering beautiful rich