Petaluma, CA Invasive Plant Rules: Prohibited Species (2026)

050(C)(4)(a)(1) prohibits invasive species listed by the California Invasive Plant Council as part of the plant-material requirements for a project's Landscape Design Plan, submitted within the landscape documentation package required before construction begins. 050(A), to new construction with an aggregate landscape area of 500 square feet or more requiring a building permit, plan check, or design review; to rehabilitated landscapes of 2,500 square feet or more within a twelve-month period; and to new and rehabilitated cemeteries. Smaller projects of 2,500 square feet or less may instead use a prescriptive compliance option, but the same plant-material rules still apply.

050(B)(1). 050(A)(5): registered local, state, or federal historical sites; properties irrigated with recycled water; ecological restoration projects without a permanent irrigation system; mined-land reclamation projects without a permanent irrigation system; and existing plant collections open to the public as part of botanical gardens or arboretums. 120(D)(7)(c)(1), so the same plant list is screened out whether a project goes through the water-efficiency landscape process or the zoning ordinance's residential design standards.