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Layton, UT Invasive Plant Rules: Prohibited Species (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Species source
Utah Noxious Weed Act, Title 4 Ch. 17
Local definition
LMC 6.24.020(11)(e)
Height limit
1 foot at all times
Firebreak exception
15 ft min., roughly 10-acre parcels
Enforcement partners
Davis Co. Health Dept, Weed Control, State Ag Dept

Summary

Layton defines a 'weed' for code-enforcement purposes to include any plant specified as a noxious weed under the Utah Noxious Weed Act, Title 4, Chapter 17 of the Utah Code, under LMC 6.24.020(11)(e). Any such species, plus vegetation that is a fire hazard or vermin harborage, must be kept under one foot tall or eradicated.

"Weeds" shall mean: a. vegetation that has become a fire hazard; b. vegetation that is noxious, a nuisance, or dangerous; c. grasses, stubble, brush, tumbleweeds, clippings, and cuttings that endanger the public health and safety by creating a fire hazard; insect, rodent, or other vermin harborage, or other nuisance; d. poison ivy; and e. plants specified as weeds in the Utah Noxious Weed Act, Title 4, Chapter 17, Utah Code (as amended), and its subsequent regulations.

Full Breakdown

020(11) defines 'weeds' for Layton's Weeds and Refuse chapter to include, at (e), 'plants specified as weeds in the Utah Noxious Weed Act, Title 4, Chapter 17, Utah Code (as amended), and its subsequent regulations,' incorporating the state's noxious/invasive species list directly into the local definition rather than maintaining a separate city list. The same definition also independently covers vegetation that is a fire hazard, that is noxious, a nuisance, or dangerous, grasses, stubble, brush, tumbleweeds, clippings, and cuttings that create a fire, insect, or rodent-harborage hazard, and poison ivy specifically.

070 sets the operative standard: any regulated weed, including a species specified under the state Noxious Weed Act, must be maintained at no more than one foot in height at all times, eradicated by chemicals, cutting, or another approved method, and the cuttings promptly cleared from the property; root-removed or rototilled weeds must be buried, hauled off, or composted as the law allows. The Director can grant a firebreak exception of at least fifteen feet around structures on parcels of roughly ten acres or more, and can exempt low-risk land such as 'hollows' or forest-service property with Fire Chief and Davis County Health Department concurrence. 080.

Violations & Fines

Allowing a noxious weed species covered by the Utah Noxious Weed Act, or any weed generally, to exceed one foot in height is a violation of LMC 6.24.060 and 6.24.070; a violation carries the penalty set in Utah Code 76-8-301 under LMC 6.24.080, and the director may pursue enforcement jointly with Davis County Weed Control or the State Department of Agriculture.

Frequently Asked Questions

Does Layton have its own list of banned invasive plants?
No separate city list. LMC 6.24.020(11)(e) adopts the Utah Noxious Weed Act, Title 4, Chapter 17 of the Utah Code, as the definition of a regulated weed species, so the state's list of noxious and invasive plants controls inside Layton too.
How tall can noxious weeds get before Layton cites the property owner?
One foot. LMC 6.24.070 requires all regulated weeds, including species named in the Utah Noxious Weed Act, to be kept at no more than one foot in height at all times, with cuttings promptly cleared from the property.
Can a large rural parcel in Layton get an exception from weed cutting?
Yes, in limited cases. LMC 6.24.070(3) lets the Director, on properties of roughly ten acres or more where full cutting is impractical, limit the requirement to a firebreak of at least fifteen feet around structures and the property perimeter instead.

Sources & Official References

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