If you are looking for wildflowers in the Chicago area, there is no better person to ask than photographer and naturalist Mike MacDonald. And he says the key is not only where to look for great wildflowers, but when. He took me to O'Hara Woods in Romeoville to see a breathtaking display of Virginia Bluebells. "I could tell you every single week where to go in Chicago nature to find wildflowers like these," he said. MacDonald tracks wildflower blooms on his website, Chicago Nature Now. "The "Now" in Chicago Nature Now," says MacDonald, "refers to going to Chicago nature at the right moment to get a wildflower blooming event that's absolutely world class, and breathtaking."