Rock County does not ban native or naturalized landscaping, but the mandatory noxious-weed duty still applies. Near navigable water, native shoreland buffers are actively encouraged under NR 115. Any grass-height limits come from your municipality.
Rock County has no ordinance prohibiting native prairie or naturalized yards. Two rules still bind you. First, Wis. Stat. 66.0407 requires destroying designated noxious weeds (Canada thistle, leafy spurge, field bindweed and others) even inside a native planting. Second, if your land borders navigable water, the county's shoreland zoning under NR 115 favors keeping and restoring native vegetation in the 35-foot buffer, where clear-cutting is prohibited. Inside cities and villages, a municipal grass-height or weed ordinance may still apply to unmanaged turf, so residents converting a lawn to prairie should confirm local rules and keep noxious weeds out.
No county penalty targets native plantings; noxious-weed neglect is enforced under state law, and municipal weed/grass ordinances are enforced by the city or village.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Rock County, WI
Wisconsin's cruelty statute (Ch. 951) makes it illegal to keep animals without proper food, water, and shelter, which is how hoarding is enforced. Rock Count...
Rock County, WI
Rock County has no blanket countywide wildlife-feeding ban, but deer and elk feeding is regulated statewide, and nuisance-feeding of wild animals is addresse...
Rock County, WI
Rock County parks close overnight. State law (Wis. Stat. 27.05) empowers the county to set park rules and penalties, and Rock County Parks posts closing hour...
Rock County, WI
Rock County has no county-wide light-trespass ordinance. Glare or spillover from a neighbor's outdoor lights is generally handled as a private nuisance, or u...
Rock County, WI
Rock County has no general dark-sky lighting ordinance, and neither does the City of Janesville. Outdoor lighting is mainly addressed through zoning conditio...
Rock County, WI
In Rock County, garage-sale signs can't legally go in the street or highway right-of-way. Wis. Stat. 86.19 bars any sign within street limits except traffic ...
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