Bonneville County, ID Landscaping Rules: Weed Ordinances (2026)
Key Facts
- Height limit
- 10 inches, measured from the ground
- Exceptions
- Food, ornamental and fuel crops exempt
- Coverage
- All land, inside or outside subdivisions
- Enforcer
- County Weed Control Supervisor
- Penalty
- Misdemeanor; new offense every 10 days
- Adopted
- Ordinance 163-94, passed 5-4-1994
Summary
Bonneville County Code § 91.01 caps ordinary weeds and offensive plants at ten inches in height on any land in the county; taller growth is a public nuisance under § 91.02 that the owner must destroy and remove.
WEEDS AND OFFENSIVE PLANTS. All plants of more than ten inches in height, measured from the surface of the ground, growing or existing in open spaces on any land or parcel of land within the county, whether within a subdivision or outside a subdivision, except such plants as are grown for use, ornament or the production of food for human or beast, or for fuel.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-1: Ordinance 280-26, passed 1-20-2026).
Full Breakdown
01 defines 'weeds and offensive plants' as all plants more than ten inches in height, measured from the ground, growing in open spaces on any land or parcel within the county, whether inside or outside a subdivision, except plants grown for use, ornament, food for human or beast, or for fuel. 02 then makes it unlawful for the owner or person in control of the land to allow, permit or suffer such over-height weeds to grow or exist, and declares their existence a public nuisance that the owner or person in control must destroy and remove.
The height threshold applies county-wide to improved and unimproved property alike, not just to vacant ground; an unmowed side yard or fence line on an occupied lot is covered the same as an open field. 08. The underlying ordinance, 163-94, was passed May 4, 1994.
Violations & Fines
Letting weeds grow past ten inches is a misdemeanor under §§ 91.01-91.09, punished per § 91.99(B) as state law provides for misdemeanor convictions, and each ten-day stretch the overgrowth continues after a citation or notice is a new, separate offense. A county-performed mow-down under § 91.07 also becomes a lien against the property under § 91.08.
Frequently Asked Questions
How tall can grass or weeds get before Bonneville County cites me?
Are garden plants or crops exempt from the weed height limit?
What happens after I get a weed notice from the county?
Sources & Official References
Other rules in Bonneville County
How Bonneville County compares: Cities with the Strictest Weed and Property Maintenance Rules·Compare Bonneville County to another location·View the Idaho landscaping rules overview
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