Cheryl Gross says a common misconception is “beautiful yellow goldenrod flowers” are the cause seasonal allergies. “They’re not,” says the president of Plant it Wild. Gross says the real culprit is ragweed. It blooms at the same time as goldenrod, but isn’t very noticeable. It’s dull green with tiny dull green flowers. Ragweed doesn’t need to be flashy because it doesn’t need to attract insects. “It’s wind pollinated,” Gross explains. ”So when it ripens and lets its pollen out, the pollen floats