Invasive Plant Rules in Allegheny County, PA (2026)
1 county-level rule, plus city-specific rules for 2 cities in Allegheny County, Pennsylvania.
Verified from official government sources
Note: These county rules apply to unincorporated areas of Allegheny County. If you live within an incorporated city, that city's own rules apply: see the city list below.
Prohibited Species
New subdivisions and land developments in Allegheny County cannot use any plant on the Pennsylvania DCNR 'Invasive Plants in Pennsylvania' list as part of required landscaping under the county code.
Allegheny County Bans Invasive Species Landscaping
Some RestrictionsAllegheny County Subdivision and Land Development Ordinance § 780-512.B(2)
Landscaping shall not include any plants documented on the Pennsylvania DCNR "Invasive Plants in Pennsylvania" list. The planting of hardy indigenous species is encouraged. C. Landscaping defined. Landscaping shall be understood to include the provision of street trees, buffer yards, replacement woodlands, and other new planted areas. Landscaping shall also be understood as the provision of ...
Invasive Plant Rules by City in Allegheny County
2 cities in Allegheny County have their own invasive plant rules rules. Each link goes to that city's dedicated page with code citations.
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