Ironweeds are perennial, native wildflowers that produce beautiful, purple blooms about the time the goldenrods start to light up the fields. There are approximately 15 different species of ironweeds (Vernonia spp.) in the eastern U.S. with more out west. The most widespread species in the eastern U.S. is tall ironweed or giant ironweed (Vernonia gigantea … Continue reading Tall Ironweed: A Beautiful Source of Fall Nectar and Pollen