Volunteer Outside at Pearson-Arastradero Preserve
Volunteer with Grassroots Ecology to support biodiversity in our local open spaces!
Volunteer Outdoors: Habitat Restoration at Bedwell Bayfront Park
Get ready to roll up your sleeves and get dirty as we work together to restore the habitat at Bedwell Bayfront Park!
Nurture Nature: Volunteer Outside at McClellan Ranch Preserve
Volunteer your time to improve habitat health near Stevens Creek in Cupertino!
Birding & Habitat Restoration at McClellan Ranch Preserve
Volunteer with Grassroots Ecology and the Santa Clara Valley Bird Alliance to improve habitat for wildlife!
Nature Caminata: Observar Aves/Bird Watching en East Palo Alto
Come explore the salt marshes of Cooley Landing con Grassroots Ecology, SFBBO y POST for a morning of bird watching. En Español y English!
Volunteer Outdoors in Mountain View: Shoreline Marsh Habitat Restoration
Volunteer your time with Grassroots Ecology to help increase biodiversity in Mountain View!
CNPS Native Plant Sale at Hidden Villa
Stock up for fall planting season during our fall plant sale at Hidden Villa, in partnership with the California Native Plant Society.
Volunteer Outdoors in Palo Alto at Foothills Nature Preserve
Volunteer your time to increase biodiversity at Foothills Nature Preserve!
Volunteer in Redwood City: Stulsaft Park Habitat Restoration
Volunteer with Grassroots Ecology to support biodiversity at Stulsaft Park!
Volunteer Outdoors in Palo Alto at Pearson-Arastradero Preserve
Volunteer your time with Grassroots Ecology and Peninsula Open Space Trust to help increase biodiversity in Palo Alto!
Volunteer Outdoors in Alviso at the Burrowing Owl Project (18+)
Join us to improve habitat for the threatened South Bay burrowing owl population.
Día de los Muertos at Cooley Landing in East Palo Alto
¡Celebre el Día de los Muertos con nosotros en actividades artesanales y musica para toda la familia!
Volunteer Stake-Cutting at Shoup Park in Los Altos
Volunteer your time to help us prepare our plant-marking stakes for restoration projects in Los Altos and beyond!
Volunteer Outdoors in Mountain View: Shoreline Marsh Habitat Restoration
Volunteer your time with Grassroots Ecology to help increase biodiversity in Mountain View!
Volunteer Outside at Byrne Preserve in Los Altos Hills
Volunteer your time to help increase biodiversity at Byrne Preserve by pruning, mulching, and maintaining our planting areas!
Volunteer at Sunnyvale Baylands Park
Help sheet mulch and weed the pollinator garden at Sunnyvale Baylands Park!
Volunteer Outdoors in Palo Alto at Foothills Nature Preserve
Volunteer your time to increase biodiversity at Foothills Nature Preserve!
2025 Coastal Cleanup Day at Cooley Landing
Join us for California's largest cleanup event, Coastal Cleanup Day! Enjoy your time at the baylands and help pick up trash!
2025 Coastal Cleanup Day at San Francisquito Creek
Grassroots Ecology and the City of Menlo Park are partnering to host volunteers for Coastal Cleanup Day at San Francisquito Creek. Join us!
2025 Coastal Cleanup Day in Redwood City
Join California's largest cleanup event, Coastal Cleanup Day! Hosted by the City of Redwood City.
Volunteer Outdoors in Alviso at the Burrowing Owl Project (18+)
Join us to improve habitat for the threatened South Bay burrowing owl population.
Volunteer Outside at Russian Ridge Open Space Preserve
Volunteer your time to help increase biodiversity at Russian Ridge Open Space Preserve!
California Biodiversity Day: Volunteer at Pearson-Arastradero Preserve
Celebrate California Biodiversity Day with Grassroots Ecology to support biodiversity in our local open spaces!
Volunteer Outdoors and Celebrate the Cottage at Redwood Grove Nature Preserve
Help us transplant native plants and say goodbye to the caretaker cottage at Redwood Grove Nature Preserve!
Volunteer Outdoors in East Palo Alto at Cooley Landing
Volunteer your time with Grassroots Ecology to help increase biodiversity in East Palo Alto!
Oaks and Galls Naturalist Walk and Bioblitz at Pearson-Arastradero Preserve
Join us for an evening guided walk to appreciate native oak trees, where we will stop half-way through for a bioblitz to look for galls.
Sheet Mulching at Byrne Preserve in Los Altos Hills
Volunteer your time to help increase biodiversity at Byrne Preserve by preparing a new planting area with cardboard and mulch!
Volunteer Outdoors in Alviso at the Burrowing Owl Project (18+)
Join us to improve habitat for the threatened South Bay burrowing owl population.
Volunteer Outdoors in Palo Alto at Foothills Nature Preserve
Volunteer your time to increase biodiversity at Foothills Nature Preserve!
LGBTQ+ and Allies: Habitat Restoration at Pearson-Arastradero Preserve
Join Grassroots Ecology for an affinity group volunteer workday for LGBTQ+ community members and allies!
Yellow Starthistle Weeding Party in Los Altos Hills at Byrne Preserve
Volunteer your time to help increase biodiversity at Byrne Preserve by removing a notoriously invasive species from the grassland!
Afternoon Weeding Party at Pearson-Arastradero Preserve
Join us for a sunny, weedy, weekday afternoon workday!
Volunteer Outdoors in Los Gatos at Bear Creek Redwoods
Volunteer your time to increase biodiversity at Bear Creek Redwoods Open Space Preserve.
Volunteer Outdoors at Cooley Landing
Volunteer your time with Grassroots Ecology to help increase biodiversity in East Palo Alto!
Yellow Starthistle Weeding Party in Los Altos Hills at Byrne Preserve
Volunteer your time to help increase biodiversity at Byrne Preserve by removing a notoriously invasive species from the grassland!
Sunset Restoration at Russian Ridge Preserve
Volunteer your time to help increase biodiversity at Russian Ridge Open Space Preserve!
Be a Star: Yellow Starthistle Weeding Party at Pearson-Arastradero Preserve
Join us for a sunny, weedy, weekday morning workday!
Restore and Rejuvenate: BIPOC Volunteer Workday at in Los Altos
We're inviting the BIPOC community to volunteer your time to help increase biodiversity in Los Altos at Redwood Grove Nature Preserve!
Give to the Grasslands: Volunteer in Portola Valley at Hawthorns
Volunteer with your time to help increase biodiversity at Hawthorns Area of Windy Hill Preserve.
Volunteer Outdoors at Pearson-Arastradero Preserve
Volunteer with Grassroots Ecology to support biodiversity in our local open spaces!
Give to the Grasslands: Volunteer in Portola Valley at Hawthorns
Volunteer with your time to help increase biodiversity at Hawthorns Area of Windy Hill Preserve.
Volunteer Outdoors at Ravenswood Open Space Preserve
Volunteer your time with Grassroots Ecology to help increase biodiversity in East Palo Alto!