This video help bring home the point that you should allow your herbs and plants to flower as long as possible in the Fall. Rather than cutting everything down before Winter, leaving these late-blooming plants alone will provide last-minute fodder for bees.
The magenta flowers seen in this video are Pineapple Sage (salvia elegans), which are located on the green roof of the Braise restaurant in Milwaukee, Wisconsin. The other flowers seen are a wildflower blend.
Also remember, November is the perfect time to plant the early Spring blooms that will provide forage for the bees as soon as the temperatures become warm enough for the bees to leave their hive. So, get out there and start planting!