08/30/2026
New York ironweed (Vernonia noveboracensis) is late-summer royalty for the pollinator garden! One of more than a dozen species native to North America, this robust perennial is crowned by large flat-topped flower clusters (corymbs) of royal purple disc florets, which pair well with native grasses and golden fall colors. (At the SBG, we especially love the winning combination of ironweed, big bluestem grass and yellow cut-leaved coneflower.)
Ironweed attracts a bevy of skippers and other butterflies, moths, and native bees who are seeking nectar as the growing season comes to a close. Several wild bees are specialist pollen collectors of ironweed, including the long-horned bees Melissodes denticulata and M. vernoniae. It’s also a host plant for caterpillars of the ironweed borer moth, the striking Parthenice tiger moth, and the red groundling moth. The tall, sturdy stems are a good spot for butterflies to attach their chrysalides, and if left standing, provide winter cover for birds.
New York ironweed thrives in sunny areas with moist soil. This low- maintenance wildflower naturalizes easily and is a great choice for rain gardens, along streams or ponds, moist meadows, or the back of the border.