Nodding Onion Gardens

Native Plant Nursery

Where Wildflowers Grow

Columbia Station, Ohio, USA


 Eryngium yuccifolium - Rattlesnake Master

 Ohio Native Plant - Natural Range

 Eryngium yuccifolium

For its natural range of this plant visit the United States Department of NRCS website.

Rare Plants of Ohio - Listed on Ohio Department of Natural Resources as - Potentially Threatened 

Prickly off white Rattlesnake Master seeds are several months away from being ready to collect
Eryngium yuccifolium
The seed heads on Eryngium yuccifolium are pointy, Stiff and prickly
Rattlesnake Master

Wildlife Significance

Eryngium yuccifolium

Host Plant Rattlesnake Master borer moth (Papaipema eryngii)

Carrot Family (Apiaceae) -
Plants in this family are host plants for the Black Swallowtail Butterfly. Rattlesnake Master is in this family.

Pollen -
Nectar - Long-tongued bees, short-tongued bees, wasps, flies, beetles, and plant bugs

Nectar Source - butterflies, skippers, moths

Deer - Are not fond of this plant

For detailed information on Rattle Snakemaster visit Illinois Wildflower website.
Eryngium yuccifolium seedlings that look like blades of grass are growing in a pot next to a planter shaped like a shoe
Rattle Snakemaster seedling started February 2016 picture taken April 13, 2016
Black Swallowtail Butterfly taking a break in a cool, damp rocky hiking trail
Black Swallowtail Butterfly
Photo Courtesy of Cuyahoga Valley National Park - Photo by © Nancy Piltch

Ripe brown Rattlesnake Master seeds begging to be harvested
Rattlesnake master seeds mature late in the fall

Cultivation Information

Eryngium yuccifolium

Height - 2 to 3 ft
Flower Color
- White
Blooms - July - September
Sun - Sun

Hardy Zone - 4 to 9

Soil - Moist to dry

Family - Apiaceae
Rattlesnake Mater - Public Square - Cleveland Ohio
Rattlesnake Master- Public Square - Cleveland, Ohio

Propagation Notes

Eryngium yuccifolium

Seed Collection -
Late in the fall, once flowers heads are brown and dry. Loosen seeds from seed head, allow to dry for a few weeks.

- Cold/moist stratify for 60 days. Store seeds in a small plastic baggie that contains a sufficient amount of vermiculite to cover seed. In an attempt to become more sustainable we are beginning to use small plastic vitamin bottles to stratify seeds. The draw back is containers take up more space in refrigerator than baggies.

Germination Rates 2016 - Highly successful! Flat of seedlings were started February 2016

Highly successful! Flat of seedlings were started February 2016

Rare Plants of Ohio - Listed on Ohio Department of Natural Resources as P - Potentially Threatened 

 A quarter, serving as a reference sitting next to a pile of Rattlesnake seeds
Our Rattlesnake Master Seeds

Seed Provenance -

Nodding Gardens - Plant 2010 - from Scioto Gardens -Delaware, OH - Nodding Onion Gardens 2011- present