Since 1988, portions of the park have burned three times. The portions that supported southern cactus scrub vegetation did not burn or burned at a lower intensity, whereas coastal sage scrub became impaired by a proliferation of invasive annual grasses, mustards, and stinknet (Oncosiphon pilulifer) that reduced native shrub cover and recruitment. Repeated wildfires have the potential to further convert valuable coastal sage scrub shrublands to nonnative annual grasslands. This Wildfire and Forest Resilience Program project will improve the resiliency of shrubland vegetation to high frequency fire by planting prickly pear cactus (Opuntia littoralis, O. oricola) across approximately 3.7 acres and reducing the cover of invasive weeds across approximately 9.5 acres at San Pasqual Battlefield State Historic Park. Eight project work zones were selected based on restoration need, accessibility, and topography. Existing vegetation in the project area is primarily impaired coastal sage scrub. Site establishment will take several years, after which the site will be maintained by the Natural Resources Program.