University of Illinois Extension
Rattlesnake Master (Eryngium yuccifolium) - Wildflowers

Directory of Wildflowers

Rattlesnake Master
Eryngium yuccifolium

Rattlesnake Master
Rattlesnake Master

Quick Profile

Exposure
Full Sun
 
Mature Height
3 - 4 Feet
 
USDA Hardiness Zones
3 - 9 
 
Native To:
Illinois
Indiana
Iowa
Michigan
Missouri
Ohio
Wisconsin
 
Soil Conditions
Dry
Moist, Well-Drained
 
Bloom Color
White
 
Bloom Season
June - September
 

Features

White to greenish white flowers in ball-like heads; sharp strappy foliage that resembles that of yucca.

Culture

Full sun; moist, well drained sites. Tolerant of dry sites.

Notes

Found in prairies and savannahs. Rattlesnake Master is listed as threatened in Ohio and Michigan. This plant has a taproot, so is difficult to transplant.