Our project site is previously developed and over 50% of it is currently vegetated with bahia grass. We would like to achieve credit compliance by protecting this existing grassed area. Previous credit interpretations have stated that a monoculture of a single species turf grass does not meet the intent of this credit for providing habitat and promoting biodiversity. They have also stated that the maintenance effort of mowing is not in line with a truly native/adapted installation. We plan to overseed the existing grass with native wildflowers in order to provide habitat and promote biodiversity. Implementation will utilize best management practices for design, construction, and management to promote natural regeneration and dispersal of native wildflowers. Wildflower species will be selected using various criteria including but not limited to: color, height, length and season of bloom, compatibility, tolerance to weeds, cultural requirements i.e. tolerance of poor soils, low maintenance, and drought tolerance. Maintenance requires seasonal mowing and alternate mowing patterns during the bloom season to encourage these native species to become established. Will this approach meet the intent of this credit?
Overseeding an existing area of bahia grass with native wildflowers does not fully meet the intent and requirements of SS Credit 5.1. As noted in the credit\'s requirements, native/adapted plants are indigenous to a locality or cultivars of native plants that are adapted to the local climate and are not considered invasive species or noxious weeds. The USDA Natural Resources Conservation Service lists bahia grass on their list of Invasive and Noxious Weeds. Additionally, Bahia grass forms a tough dense mat that allows it to compete successfully with other species, precluding the restoration and establishment of native or adapted vegetation.