Invasive Plant Rules in Yellowstone County, MT (2026)
1 county-level rule, plus city-specific rules for 1 city in Yellowstone County, Montana.
Verified from official government sources
Note: These county rules apply to unincorporated areas of Yellowstone County. If you live within an incorporated city, that city's own rules apply: see the city list below.
Prohibited Species
Yellowstone County's Zoning Code doesn't ban individual plant species, but Section 27-1203.B.1 requires that any plant material used on a required landscape plan have noninvasive growth habits, checked by the zoning coordinator before a zoning compliance permit issues.
Noninvasive Landscaping Rule in Yellowstone County
Some RestrictionsYellowstone County Zoning Code § 27-1203.B.1(b)
1. Landscape plans shall be prepared with materials that meet the requirements of Section 27-1207 and that: (a) Are appropriate to the conditions in which they are planted; (b) Have noninvasive growth habits; (c) Encourage low maintenance, high quality design; and (d) Are otherwise consistent with the intent of this article.
Invasive Plant Rules by City in Yellowstone County
1 cities in Yellowstone County have their own invasive plant rules rules. Each link goes to that city's dedicated page with code citations.
All Yellowstone County ordinances
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