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For successful seedlings,
see the growing notes at the bottom of the page!

Prairie ironweed (Vernonia fasciculata) is a tall, herbaceous perennial that can reach up to 1.8 m in height. It grows in upright clumps with sturdy, slightly reddish stems bearing long, narrow, and toothed bright green leaves. In late summer, it produces striking clusters of purple to violet flowers arranged in dense corymbs. This spectacular bloom attracts a wide variety of pollinators, including bees, butterflies, and hoverflies. Prairie ironweed naturally grows in wet prairies, ditches, and along stream banks where soils are deep, rich in organic matter, and consistently moist but well drained.

Ecological roles
Prairie ironweed plays an important role in wetland and prairie ecosystems. Its late-summer bloom provides an essential source of nectar and pollen at a time when few other flowers remain. It attracts many pollinators, including wild bees, bumblebees, and several butterfly species. Its rigid stems also offer perching and overwintering sites for insects in natural prairie habitats.

Prairie Ironweed seeds require cold stratification to ensure germination. See the cultivation notes below for more details.

Akène cannot assume any responsibility for the use of plants for therapeutic purposes. Always seek advice from a professional before using a medicinal or edible plant.