Marsh Rattlesnakemaster is a native wildflower of freshwater wetlands and coastal plain habitats in the southeastern United States with distinctive thistle-like blue flower heads. Unlike its prairie relative rattlesnakemaster, it grows in wet, acidic soils. Its unusual flowers attract many specialist insects including native bees and wasps.
Best time to see a Marsh Rattlesnakemaster
The best time to see a Marsh Rattlesnakemaster is July–August, when about 61% of U.S. sightings happen, based on 327 research-grade iNaturalist observations.
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Recent Marsh Rattlesnakemaster sightings near you
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