Columbia, MO Landscaping Rules: Weed Ordinances (2026)
Key Facts
- Height limit
- 12 inches
- Enforcement
- City hearing officer, health dept.
- Abatement deadline
- 5 business days after order
- Unpaid cost
- 8% interest, property lien
Summary
Columbia, Missouri caps turf grass and weeds at 12 inches on any lawn or yard in Boone County; taller growth is a public nuisance the city can abate and bill to the owner.
All turf grass and turf weeds must be mowed and trimmed to prevent these plants from attaining a height of more than twelve (12) inches.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 138).
Full Breakdown
Columbia's nuisance code caps turf grass and turf weeds at twelve inches on every residential and commercial lot in the city. Exceeding that height is a public nuisance under the health department's abatement process: the hearing officer can order the growth cut within five business days, and if the owner doesn't comply, city crews or a contractor cut it and bill the cost as a special tax bill lien on the property, accruing 8 percent annual interest. Native landscapes and food gardens are exempt from the strict height cap when properly maintained under section 11-252(b).
Violations & Fines
Failure to mow triggers a nuisance hearing and abatement order; unpaid abatement costs become a special tax bill lien on the property, accruing 8 percent interest annually.
Frequently Asked Questions
Does Columbia's weed law apply to native or wildflower gardens?
Who enforces the 12-inch weed rule in Columbia, Missouri?
Sources & Official References
Other rules in Columbia
How Columbia compares: Cities with the Strictest Weed and Property Maintenance Rules·Compare Columbia to another location·View the Missouri landscaping rules overview
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