During October afternoons the Swamp Sunflowers are quite shocking. I've planted this wildflower in my garden - BIG MISTAKE. Right now the tallest stalk is about fourteen feet high and likes to bounce in the breeze... but most have fallen over and are resting on the patch of past-prime phlox. It's a mess. I need to dig them up. I keep telling myself this, but the blooms are so beautiful, it's hard to actually get around to doing it.