FREE. Protect local salmon populations by planting native grasses. Gloves and tools provided. Ages 10 & up. Youth under 16 must be accompanied by an adult. Rain or shine. 8:30 a.m.–1 p.m. Pepperwood Preserve. Meet up: Dwight Center Courtyard. 2130 Pepperwood Preserve Rd., Santa Rosa. Sign-up: tinyurl.com/2t88bxth.