In the absence of national or state best practices and recommended design guidance, the objectives of this research, include: • Document current and emerging regional and nation-wide best practices, case studies and design guidance for siting, designing, and constructing bioswales in historic districts both eligible for inclusion and listed in the NRHP; • Identify future research needs and opportunities for best practices and recommended design guidance associated with planning, designing, constructing, and maintaining of bioswales in NRHP-listed/eligible historic districts in rural and urban settings; and, • Identify regionally-appropriate bioswale plantings that would concurrently function to treat stormwater, provide roadside pollinator habitat, and, be aesthetically compatible (formal/informal; short; tree/shrub; native; etc.) with NRHP-listed/eligible historic districts in rural and urban settings.