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Landscaping Rules in Champaign County, IL (2026)

2 rules for unincorporated Champaign County, Illinois.

Verified from official government sources

Note: These county rules apply to unincorporated areas of Champaign County. If you live within an incorporated city, that city's own rules apply: see the city list below.

Weed Ordinances

Beyond mowing height, Illinois law makes controlling noxious weeds a legal duty. The Illinois Noxious Weed Law requires every owner across Champaign County to eradicate listed species like Canada thistle, giving cities and the county authority to abate and lien.

Champaign County Weed & Noxious Weed Rules

Some Restrictions

505 ILCS 100/3

Every person shall control the spread of and eradicate noxious weeds on lands owned or controlled by him and use such methods for that purpose and at such times as are approved and adopted by the Director of the Department of Agriculture.

Native Plants

Native prairie landscaping is well accepted here. Since July 2024, Illinois' Homeowners' Native Landscaping Act bars HOAs from prohibiting native-species yards, and Champaign's code allows non-turf parkway plantings to 24 inches, so a maintained prairie garden is legal, not a violation.

Champaign County Native Plant & Prairie Landscaping

Few Restrictions

765 ILCS 167/10(a)

An Association shall not prohibit any resident or owner from planting or growing Illinois native species on the resident's or owner's lawn so long as the area is maintained predominantly free of weeds, invasive species, and trash, and vegetation does not extend over or onto neighboring properties, public or common sidewalks, pathways, streets or other public or common areas or elements, and doe...

All Champaign County ordinances

See every category we cover for Champaign County: parking, noise, fences, fires, animals, pools, and more.

Champaign County Ordinance Hub →