Eryngium yuccifolium (Rattlesnake Master) is a tall, perennial herb known for its distinctive yucca-like, spiny leaves and unusual greenish-white, globe-shaped flower heads. Reaching heights of up to 6 feet, it thrives in sunny, moist conditions and various well-drained soils. Its rigid stems and thistle-like blooms make it an eye-catching choice for water gardens or bog areas. This plant can be an aggressive self-seeder, so removing seed heads is recommended to prevent it from spreading too freely. Historically, it was believed to have curative properties.

Scientific Name: Eryngium yuccifolium
Origin: Florida to Texas, north to New Jersey, Indiana, southern Minnesota, and Nebraska
Height: 2 to 6 feet
Spread: 2 to 3 feet
Light: Full Sun
Water: Medium
USDA Zones: 3-8
Bloom Dates: May to August