Thursdays, 2–5 p.m. & Fridays 9 a.m.–noon, ongoing
Meet: large tunnel, Sea Scout Dock, 3500 Van Ness Ave.
Help to remove invasive species that have overwhelmed the site and revegetate the garden with a mix of native species and horticultural species that were planted by the residents of Fort Mason over 100 years ago. Free, 415-561-3000, parksconservancy.org
