by Connie Oswald Stofko No, it’s not too late to plant perennials! In general, you should plant perennials by the middle of September, said Mark Yadon, vice president at Mischler’s Florist and Greenhouses. You want to give the plant enough time to establish roots before the ground freezes. Depending on the winter, you might be able to plant later, but you should be safe if you get your perennials in by the middle of September. Now is a good time…...

