SEED ORDERS OVER $100 SHIP FREE!
Eryngium yuccifolium

Rattlesnake Master

$3.00 - $10.00

Packet
$3.00
1/8 oz.
$4.00
1/4 oz.
$5.00
1/2 oz.
$6.50
1 oz.
$10.00

Bare Root Plants
Out of Stock

3 Pack
Out of Stock
Tray of 38
Out of Stock
Tray of 50
Out of Stock

Eryngium yuccifolium (Rattlesnake Master) matures to a height of 4' and has white "bristly" flowers. These bristly flowers and coarse leaves make it largely ignored by deer and rabbits.  It is a member of the carrot/parsley (Apiaceae) family, but is very different-looking from the usual umbel flowers and fine-cut foliage of plants in this family.  It is typically found in medium-wet to medium-dry soils and prefers sites with full sun. Althugh not a butterfly or bumblebee magnet, small native bees, moths and flies will nectar on Rattlesnake Master. Rattlesnake Master is one of the host plants of the Black Swallowtail

The latin name, Eryngium yuccifolium, comes from the fact that the leaves look very much like a Yucca plant. Other common names include Button Snakeroot, Yucca-leaf Eryngo, Corn Snakeroot, Water-eryngo, Rattlesnake Flag, and Rattlesnake Weed.

Live Plant Shipping Table

Spring Fall Age/Size
Dormant Bare Roots April/May October
Potted 3-Packs May/June August/September 2.5" wide x 3.5" deep pots
Potted Trays of 38* May/June N/A 2" wide x 5" deep plugs
Potted Trays of 50 May August/September 2" wide x 5" deep plugs
*This species is a choice in the Mix & Match - Create Your Own Tray!

Eryngium yuccifolium - Rattlesnake Master

Map Key

Present in state
Present but introduced in county
Present and native in county; not rare
Not present in state
Present and native in county; rare
Species extirpated (historic)
State or county listed as noxious
Present in state; exotic

This map shows the native and introduced (adventive) range of this species. Given appropriate habitat and climate, native plants can be grown outside their range.

3 Questions asked on Eryngium yuccifolium

In Zone 8, should Rattlesnake Master be cut to the ground in winter/early spring?
Hi Stephen. It's totally up to you what you want aesthetically. It wouldn't need to be cut back; as an herbaceous perennial it will come up each year from the ground. We are fans of keeping dead vegetation around all winter for wildlife, but if you want a tidier appearance you can cut or burn back these perennial natives in the fall, winter, or early spring.
How long after sowing rattlesnake master will it bloom (first, second, third year?)
Hi Katherine, It can vary depending on growing conditions, but I would say typically three to four years.
My 8-year old and his Cub Scout den are wondering why they are called Rattlesnake Master. Thank you in advance :-)
Great question, Rebecca and Scouts! This plant got the common name "Rattlesnake Master" because it was historically used as a snakebite antivenom. Native Americans would make a poultice from the roots to treat an assortment of other ailments, too.

Seed

Growing your own plants from seed is the most economical way to add natives to your home. Before you get started, one of the most important things to know about the seeds of wild plants is that many have built-in dormancy mechanisms that prevent the seed from germinating. In nature, this prevents a population of plants from germinating all at once, before killing frosts, or in times of drought. To propagate native plants, a gardener must break this dormancy before seed will grow.

Each species is different, so be sure to check the GERMINATION CODE listed on the website, in the catalog, or on your seed packet. Then, follow the GERMINATION INSTRUCTIONS prior to planting. Some species don't need any pre-treatment to germinate, but some species have dormancy mechanisms that must be broken before the seed will germinate. Some dormancy can be broken in a few minutes, but some species take months or even years.

Seed dormancy can be broken artificially by prolonged refrigeration of damp seed in the process of cold/moist STRATIFICATION. A less complicated approach is to let nature handle the stratifying through a dormant seeding, sowing seeds on the surface of a weed-free site in late fall or winter. Tucked safely beneath the snow, seeds will be conditioned by weathering to make germination possible in subsequent growing seasons.

To learn more, read our BLOG: How to Germinate Native Seeds

Dormant Bare Root Plants

We dig plants when they are dormant from our outdoor beds and ship them April-May and October. Some species go dormant in the summer and we can ship them July/August. We are among the few still employing this production method, which is labor intensive but plant-friendly. They arrive to you dormant, with little to no top-growth (bare-root), packed in peat moss. They should be planted as soon as possible. Unlike greenhouse-grown plants, bare-root plants can be planted during cold weather or anytime the soil is not frozen. A root photo is included with each species to illustrate the optimal depth and orientation. Planting instructions/care are also included with each order.

Download: Installing Your Bare-Root Plants

Potted Plants

3-packs and trays of 32, 38, or 50 plants leave our Midwest greenhouses based on species readiness (being well-rooted for transit) and order date; Spring shipping is typically early May through June, and Fall shipping is mid-August through September. Potted 3-packs and trays of 38 plugs are started from seed in the winter so are typically 3-4 months old when they ship. Trays of 32/50 plugs are usually overwintered so are 1 year old. Plant tray cells are approximately 2” wide x 5” deep in the trays of 38 and 50, and 2.5" wide x 3.5" deep in the 3-packs and trays of 32; ideal for deep-rooted natives. Full-color tags and planting & care instructions are included with each order.

Download: Planting and Care of Potted Plants

*PLEASE NOTE: we are a mail order nursery and have no retail facilities, but you may pick up your order if prior arrangements are made. Pick up orders are subject to **MN Sales Tax.

US Shipping & Handling Charges

SEED $100.00 and under: $5.00
Retail SEED orders over $100.00 ship free!

Custom seed mixes or discounted seed sales over $100, add 5% of the total seed cost
(for orders over $1,000 a package signature may be required)

BARE ROOT and POTTED PLANTS $50.00 and under: $9.00
over $50.00: 18% of the total plant cost. (For orders over $1,000 a package signature may be required.)

TOOLS and BOOKS have the shipping fee included in the cost of the product (within the contiguous US).

**We are required to collect state sales tax in certain states. Your state's eligibility and % will be calculated at checkout. MN State Sales Tax of 7.375% is applied for orders picked up at our MN location. Shipping & handling charges are also subject to the sales tax.

Shipping Season

SEED, TOOLS and BOOKS are sent year-round. Most orders ship within 1-3 business days.

BARE ROOT PLANTS are shipped during optimal transplanting time: Spring (April-May) and Fall (Oct). Some ephemeral species are also available for summer shipping. Since our plants are field-grown, Nature sets the schedule each year as to when our season will begin and end. We fill all orders, on a first-come, first-serve basis, to the best of our ability depending on weather conditions beyond our control.

POTTED PLANTS (Trays of 32/38/50 plugs and 3-packs) typically begin shipping early May and go into June; shipping time is heavily dependent on all the species in your order being well-rooted. If winter-spring greenhouse growing conditions are favorable and all species are well-rooted at once, then we ship by order date (first come, first serve). We are a Midwest greenhouse, and due to the challenges of getting all the species in the Mix & Match and Pre-Designed Garden Kits transit-ready at the same time, we typically can't ship before early May. Earlier shipment requests will be considered on a case-by-case basis.

*We are unable to ship PLANTS (bare root or potted) outside the contiguous US or to CALIFORNIA due to regulations.

Delivery

We ship using USPS, UPS and Spee Dee. UPS and Spee Dee are often used for expediting plant orders; they will not deliver to Post Office Box numbers, so please also include your street address if ordering plants. We send tracking numbers to your email address so please include it when you order.

FOR MORE DETAILED SHIPPING INFORMATION, INCLUDING CANADA SHIPPING RATES (SEED ONLY), PLEASE SEE 'SHIPPING' AT THE FOOTER OF THIS WEBSITE.

Details

Seeds/Packet
250
Seeds/Ounce
7,500
Germination Code
C(60)
Life Cycle
Perennial
Sun Exposure
Full
Soil Moisture
Medium-Wet, Medium, Medium-Dry
Height
4 feet
Bloom Time
July, August, September
Bloom Color
White
Advantages
Pollinator Favorite: butterflies, moths, bees, wasps, beetles
Bird Favorite: seeds, insects, fruit, nectar, nesting, perch
Deer Resistant
Highly recommended for home landscaping
USDA Zones
4-9
Plant Spacing
18-24"
Catalog Code
ERY02F