Connie for you I also would not plant coneflowers later in the season they take awhile to get a good root system, for me any one I plant after July stands much less chance at overwintering. I also notice that ones from different breeders do better in certain parts of the country. For me Terra Nova and A.B. Cultivar do well with Sombrero and the Double Scoop series just about never overwintering. But some others that are South of me it is the other way around
