Dallas, TX Invasive Plant Rules: Prohibited Species (2026)

Dallas regulates landscaping primarily through its Development Code Article X, which establishes landscape requirements for commercial and multifamily development projects. Article X specifies minimum tree sizes, planting standards, and approved plant materials. The Texas Department of Agriculture regulates noxious weeds under Texas Agriculture Code Chapter 71, including giant salvinia, water hyacinth, and various thistles. The Texas Invasive Plant and Pest Council identifies problematic species in the North Texas region including Chinese tallow (Triadica sebifera), ligustrum (Ligustrum species), chinaberry (Melia azedarach), Japanese honeysuckle (Lonicera japonica), and King Ranch bluestem (Bothriochloa ischaemum). Dallas's tree preservation ordinance requires permits to remove significant trees and encourages planting native species. The Dallas Park and Recreation Department maintains urban forestry programs promoting native trees like Texas red oak, live oak, and cedar elm. Residential properties are not restricted from planting most species, but development projects must comply with Article X landscape standards.