Beautiful blue flowers all summer long.  As the flowers age, the calyx remains deep-blue after the actual flower falls off, giving the impression that the entire flower stalk remains in flower giving a greater floral presence in the garden. Playin' The Blues^™ is a big attractor of bees! They love the sweet nectar in the flowers, so place it accordingly; a bit farther from seating areas if bees are a concern. It is always great to have a plant that will support our native bees!!