Tree Talk: Blossoms and butterflies

Summer is winding down and it's time to take notice of the things that represent Nature's summer-best before they're gone for the season. Right outside my office window is a display of purple coneflowers, now in full bloom. It's a magnet for countless types of marvelous creatures, including bees and butterflies and even an occasional hummingbird. One of the showiest visitors over the past fe...