70 ILCS 405/22.05
To make available, on such terms as it shall prescribe, to landowners or occupiers within the district, the use of agricultural and engineering machinery and equipment, and such other material or equipment as will assist such landowners or occupiers to carry on operations upon their lands for the conservation and improvement of soil health and soil and water resources and for the prevention and control of loss of soil health, soil erosion, and erosion floodwater and sediment damages.
Soil and water conservation districts may engage in the direct sale of trees, shrubs, or other plant materials as provided in this Section. Plant materials that may be sold are seeds of annual or perennial plants, bare-root stock, or stock in pots not to exceed one gallon. The plant material shall be advertised as follows:
"These plants are for conservation purposes only and shall not be used as ornamentals or for landscaping."
For purposes of this Section, "stock" means hardwood trees not to exceed 48 inches, conifers not to exceed 36 inches, shrubs not to exceed 24 inches, or any other plant materials not to exceed 24 inches.
70 ILCS 405/22.05