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

Section 17.64.040(H)(5) sits inside Woodland's General Landscaping Requirements and applies to every project required to submit a landscape plan under subsection G, meaning residential, mixed-use, commercial, and institutional development citywide. The prohibition is tied to an external, updated reference list, the California Invasive Plant Council's Cal-IPC inventory, so a plant Cal-IPC adds to its list becomes unlawful to install in Woodland without the City separately amending its code. The rule reaches past new installations: it also requires that invasive plants and noxious weeds already growing on a site be removed as part of the same landscape project, so a redevelopment or remodel that triggers a landscape plan cannot work around an existing patch of a Cal-IPC-listed species.

The requirement sits alongside the native-plant mandate in subsection H.4, which pushes projects toward California native and drought-tolerant species, so the invasive-species ban and the native-plant floor operate together: a plan cannot satisfy the 75% native/climate-adapted requirement of subsection H.4.a with a species Cal-IPC has listed as invasive. Community Development Department staff check proposed plant lists against the Cal-IPC inventory during landscape plan review, and a plan that proposes or leaves in place a listed species is not approved. This standard is separate from Chapter 9.44's fire-hazard weed abatement program, which targets flammable dry vegetation rather than invasive ornamental species.