Silphium terebinthinaceum  Prairie Dock - Prairie Rosinweed
SILL-fee-um  ter-ee-bin-THIN-uh-see-um

Easyliving Native Perennial Wildflowers Native Wildflower Seed and Potted Plants

 for Home Landscaping and Prairie Restoration  

Prairie Dock Photo by cj

Habitat Bloom Period Color Height Inches Moisture Plant Spacing Lifespan

Silphium terebinthinaceum picture, prairie dock picture

Sun to 
Lt Shade
August and September Yellow 48-96 Average to Moist 12 to 36 Inches Perennial

   For ourother Native Wildflowers visit Wildflower Seed and Potted Plant Price List 

 to order copy and mail the order form
 email questions, comments, and orders to   

Silphium terebinthinaceum seed
Prairie Dock seed

number of seeds

approximate coverage
in square feet

1 packet - 


20 sq ft

1 ounce -  


140 sq ft

1 pound -  


2,240 sq ft

Potted plants are $5.00 each plus boxing/shipping
 email with your zip code and number of plants  for shipping charges on native wildflower potted plants

Seed shipping chart at bottom of page

Silphium = Ancient Greek name of another resin-producing plant (probably now extinct)
terebinthinaceum = Like turpentine

Silphium terebinthinaceum, prairie dock or Prairie Rosinweed, is a striking and conspicuous element of the prairie and glade landscapes.  Silphium terebinthinaceum has tall six to eight foot, leafless stalks with open branched clusters of three-inch yellow flowers.  Prairie dock's huge heart-shaped basal leaves form a rosette at the base of the plant making a very attractive addition to the wildflower garden and are beautiful in dried arrangements.  Prairie Dock plants prefer rich average to moist soil in full sun or light shade.  This plant is a long-lived, drought-resistant perennial and its seeds are a food source for chickadees, sparrows and finches.

The large rough leaves of Silphium terebinthinaceum provide contrasting form and texture when planted with prairie grasses like little bluestem or Prairie Dropseed and showy native wildflowers like New England Aster, Sweet Black-eyed Susan, Royal catchfly, blazing star, Prairie Coneflower, Purple Coneflower, Blue Sage, Culver's Root, Purple Meadow Rue, False Sunflower, and Showy Goldenrod).

Silphium terebinthinaceum seed germination is improved after a pretreatment of 3 to 4  weeks of cold moist stratification or when planted outside in the fall or early winter.

Native Prairie Dock wildflowers occur naturally on prairies, glades, and bald knobs from Ontario and Wisconsin south to Georgia and Louisiana and can be planted over most of the US.  Asteraceae (Aster Family)

The map below shows areas where native Prairie Dock plants grow wild, it can be planted and will grow over a much wider area and will grow over most of the USA.  Plant in USDA plant hardiness zones 3 to 9.

Silphium terebinthinaceum
Prairie Dock - Prairie Rosinweed


North Carolina

South Carolina
West Virginia

State Distributional Map for Silphium terebinthinaceum, prairie dock wild flower seed

Use the chart below for shipping charges on native wildflower seeds
 to order copy and mail the order form
email questions, comments and orders to 

email with your zip code and number of plants for shipping charges and availability on native wildflower potted plants

We accept payment by check, money order, and through Paypal

The minimum seed order amount is $10, this can be a combination of different seeds.

subtotal for flower seeds 

shipping charge for seeds

seed orders up to  $20.00    =  

 $4.00 shipping

$20.01 - $50.00    =  

 $6.00 shipping

$50.01-$100.00    =  

 $7.50 shipping

over $100.00    =    7.5 % of subtotal


  Flower Pictures  Wildflower Seed and Potted Plant Price list   Order Form   

Easyliving Wildflowers
PO Box  522
Willow Springs,  MO.  65793
Phone 417-469-2611 

We accept payment by check or money order and through PayPal

e-mail questions, comments, and orders to

Silphium terebinthinaceum, prairie dock or Prairie Rosinweed Plant distribution map complements of USDA, NRCS. 2001. The PLANTS Database, Version 3.1
  ( National Plant Data Center, Baton Rouge, LA 70874-4490 USA.