Second Annual Earth Day Celebration at Alemany Farm. Co-sponsored with San Francisco Parks Trust. Youth from Student Conservation Association will be volunteering on-site, among other groups. Visitors can participate in digging beds and planting seedlings. This is a potluck, but there will also be sustainably farmed beef ribs available and some vegetarin options. Live music with Slow Motion Cowboys, a special acoustic performance by indiepop “Botticellis” and more. (SF Guardian Featured Event)