Purple Dome Aster

The last bright spot of color of summer in my garden beds at home is old reliable Purple Dome Aster.  He never fails me, he's like old faithful!  Right on time early October in all his purple glory!  He also seems to resist frost so I keep a few alyssum at his feet to keep him company.  I get lots of questions from the neighborhood army of walkers about what that plant is.  I keep splitting it every three years and donate pieces to my garden club annual plant sale.