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  1. Illinois DNR
  2. Education

For Your Garden - October 2015

 
Native plants provide beauty as well as food and shelter for wildlife. Native species are adapted to the Illinois climate. They require little or no watering and are resistant to drought, insects and most diseases. Because they are perennials, you can welcome their presence year after year.
 

rosinweed (Silphium integrifolium)
Photo © Joe Bauer, Illinois Department of Natural Resources
 
Rosinweed grows in prairies statewide. The plant is about two to three feet tall when mature. The stems usually have paired leaves with no stalks, although the arrangement and shape of the leaves varies greatly. The leaves are rough to the touch. Flower heads are produced on short stalks at the stem tips in July and August. The flower heads contain yellow ray flowers surrounding yellow-green disk flowers. It is called “rosinweed” due to the resinlike sap that the plant produces. This plant provides nectar and pollen for native pollinator species.
 
Classification and taxonomy are based on Mohlenbrock, Robert H. 2014. Vascular flora of Illinois: A field guide. Fourth edition. Southern Illinois University Press, Carbondale. 536 pp.
 

 Native Plant Information

 
For more information about native Illinois plants, including where to purchase them and planting guides, view the following publications at our publications page. You can access more information on the Schoolyard Habitat Action Grant page, too.
 
  • Prairie Establishment and Landscaping
  • Landscaping for Wildlife
  • Butterfly Gardens