Lynnwood, WA Invasive Plant Rules: Prohibited Species (2026)

0220(E)(1) sets the General Plant Standards for any landscape plan reviewed under Title 8. Subsection (b), Prohibited Plants, states that plants listed by the Washington State Noxious Weed Control Board or commonly known as invasive species cannot be planted in the city; subsection (c), Permitted Plants, requires landscaping materials to be species native to the Puget Sound lowland region or noninvasive species adapted to the region's climate, with drought-tolerant vegetation preferred. 0220(I)(2)(c), any invasive or noxious weed plant species identified on a site, along with diseased, dead or dying trees, must be removed before supplemental plantings are installed to earn credit for preserving natural areas.

0100's triggers of subdivision, new construction, addition or site modification. Because the underlying list is maintained by the state board and simply incorporated by the city's own planting prohibition, the ban itself is Lynnwood's own zoning standard rather than a state statute governing agricultural or right-of-way weed control.