Particulate matter (PM) is a component of air pollution harmful to children’s health and is often found in elevated concentrations around urban schools. Vegetation barriers can protect children from exposure to PM by capturing and accumulating particulates and preventing their dispersion. This study, commissioned by the Texas Trees Foundation, sought to determine the efficiency of diverse plant species in filtering airborne PM at the Charles Rice Learning Center in Dallas, Texas, and thus to inform plant species selection for vegetation barriers around urban schools.