Weld County, CO Landscaping Rules: Weed Ordinances (2026)
Key Facts
- Unincorporated policy
- WCC Ch. 15 (Ord. 2004-9)
- Noxious weeds
- Declared a public nuisance
- County notice period
- 10 days to control
- Greeley notice period
- 7 days to comply
- General grass limit
- None countywide
Summary
Unincorporated Weld County has no general grass-height limit, but its Noxious Weed Management Enforcement Policy declares listed noxious weeds a public nuisance and requires all landowners to manage them. Greeley separately enforces noxious-weed control and bans decaying vegetation.
The noxious weeds listed in Section 15-1-40 of this Code, at any and all stages, their carriers, and any and all premises and things infested or exposed to infestation therewith in the County, are declared to be a public nuisance.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Charter and County Code: Supplement 95).
Full Breakdown
In this large agricultural county, weeds are regulated through the Colorado Noxious Weed Act rather than a suburban grass-height rule. The Weld County Noxious Weed Management Enforcement Policy (Chapter 15), adopted by Ordinance 2004-9, applies throughout the unincorporated county and declares the listed noxious weeds, at all stages, a public nuisance subject to abatement. Landowners who ignore a Notice to Control Identified Noxious Weeds within ten days can have the weeds controlled by the county at their expense. Home-rule Greeley runs its own weed-control program (Sections 12-503, 12-606, 12-607): decaying vegetation is prohibited and owners who fail to manage noxious weeds within seven days can be charged the abatement cost plus $50 and 20% incidentals.
Violations & Fines
Weld County can abate uncontrolled noxious weeds and lien the whole cost, plus up to 20% incidentals, against the tract. Greeley adds a $50 charge plus 20% inspection cost to owner-neglect abatements.
Frequently Asked Questions
How tall can my grass be in unincorporated Weld County?
What happens if I ignore a weed notice?
Sources & Official References
Other rules in Weld County
How Weld County compares: Cities with the Strictest Weed and Property Maintenance Rules·Compare Weld County to another location·View the Colorado landscaping rules overview
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