• Vernonia fasciculata


Vernonia fasciculata

Ironweed Description:

Vernonia fasciculata, commonly known as Ironweed, is a herbaceous perennial plant that is native to North America. It can be found in prairies, meadows, and along streambanks from the eastern part of Canada to the eastern United States.

Ironweed typically grows 3 to 6 feet tall and has a clump-forming habit. It has lance-shaped leaves that are arranged alternately on the stem. In mid-summer to early fall, the plant produces clusters of small, purple to pink flowers that are highly attractive to pollinators such as bees and butterflies.

Vernonia fasciculata is an excellent plant for naturalizing in a prairie garden or wildflower meadow, and it is highly valued for its medicinal properties. It prefers a well-drained soil in full sun to partial shade and can be used in borders, rock gardens, or as a specimen plant. The plant is deer-resistant and can be easily grown from seed or transplants. The attractive flowers and foliage make it a beautiful addition to any garden or landscape, and the medicinal properties make it a popular choice for herbalists and gardeners alike.

Native Range:

Ironweed is mostly found concentrated in the Midwestern states, but does extend its range to Montana south to Texas. 

Standard Plant Information:

Plant Height: 3' - 6' 

Bloom Time: July - September

Preferred Habitat: Does well in full sun and moist soil. Often found in low prairies, ditches, marshes, and along shorelines. 


For most homeowners, the best option is to scatter seed on the ground by hand broadcasting at a minimum of 16-64 pls ounces per acre.  For even coverage, we recommend that you broadcast seed in perpendicular rows across the site to ensure even coverage.

You’ll want to broadcast any grass seed first, which will get raked into the soil lightly. Next, it is ideal to mulch the area lightly with either a clean (no seed) straw or preferably with our native Little Bluestem straw, sold at our retail garden centers. After a light mulching is complete, now it’s time to broadcast your native wildflower seeds, which should not be raked into the soil. A good rain or watering is sufficient to cover the seed.


Simply dig a hole in the soil slightly larger than the plant’s roots. Ensure that the soil line of the plant is maintained during the transfer (i.e. the plant should be at the same level with the ground as it was in the pot). Pack any loose dirt back around the plant and make sure you water it well the same day to ensure it has the best chance of survival.

maps used with permission from MN Wildflowers

Vernonia fasciculata Gallery

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