Perennials: Are asters invasive?, 1 by Leftwood

Leftwood wrote:
Asters can be annual or perennial, invasive or not. Many, if not most of the larger ones (2.5+ ft.) spread underground. Purple Dome is not. I have one called Snow Flurries that is only 6 inches high with a spreading habit above ground, but spreads very little underground. The ones you buy at Lowe's or HD I am guessing would be winter hardy in z6, but they are really grown for fall color for that season only.