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Originally formed in 1965, the California Native Plant Society (CNPS) is a statewide non-profit organization of amateurs and professionals with a common interest in California's native plants. The Society seeks to increase understanding of California's native flora and to preserve this rich resource for future generations. Membership is open to everyone.

Members of the Napa Valley chapter of CNPS hail from Napa, Sonoma and Lake counties. The chapter is responsible for upkeep of the Martha Walker Native Habitat Garden at Skyline Wilderness Park in Napa, sponsors local lectures and workshops, and holds twice yearly native plant sales


For details on the following events, please visit the Napa CNPS Activities & Events page.


Come visit our booth at this fun event!FDDAD

Summer Opportunities from the California GLORIA Project


July 11-15 Public Workshop / Field Trip 

For the second year, the California GLORIA field crew is holding an open-invitation field trip. Interested parties are encouraged to come join us and learn about the alpine environment (no experience needed). Educational walks, hiking tours, and lectures will be led by some of the scientists who know the White Mountains best.

July 21-26 White Mountains GLORIA Resurvey

This is a week of volunteer-driven scientific survey work at the tops of the highest peaks in the White Mountains.  Attendees are mostly volunteer botanists, natural science students, and research scientists.

July 31 - Aug 6 Yosemite - Dunderberg Area Resurvey

This is a week of volunteer-driven scientific survey work at the tops of 4 high peaks on the Sierra crest near Tioga Pass and Lee Vining.  Attendees are mostly volunteer botanists, natural science students, and research scientists.


The international GLORIA project (Global Observation & Research Initiative in Alpine Environments) monitors alpine plants at risk from climate change at the tops of the world’s highest mountains. Click Here for more info.

Cal Poppy2

Poppy Project in Palo Alto

Come and enjoy the resurrected wildflowers for Easter, planted on the hillside above the parking lot at the Arastradero Preserve. There should be 1,000-2,000 blooms in the restored area.  The project is taking a 100% weed-covered hillside and replanting the original wildflowers that grew there 200 years ago.  This project is being done 100% with donations from local businesses and residents, and you can see pictures and get more information at

Napa Valley Community Foundation Recognizes CNPS

CNPS was recently featured in the NVCF newsletter. We are proud to be supported and recognized by them. Read the whole article here.

Napa Valley Give! Guide Success

The Napa Valley Give! Guide was a great success. Thank you to all those who supported CNPS and other local non-profits!


 Ongoing 2014 CNPS Field Trips

See the Activities Page for more info.


Martha Walker Garden
Volunteer Work Group

Weekly work group meets every Wednesday morning from 9 a.m. to noon. Rain cancels.

Join our group of volunteer gardeners and learn about native plants while helping maintain the Garden.

No experience needed.  All age groups welcome.

Please see the Volunteer Opportunities page for more details.


Special Thanks

Thank you to Treasury Wine Estates (TWE)


Ted Stenz from Treasury Wine Estates (TWE) presents Napa Valley CNPS with a $5,000 grant to refurbish the riparian area near the stream bed in the Martha Walker Garden. Work will commence in May with help from the Finance Department of TWE, which owns wineries including Beringer, Etude, Stags’ Leap, Chateau St. Jean and others. Thank you TWE!


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Photos from the Garden


Pipe Vine butterfly caterpillar - black body with orange spikes on Aristolochia leaf


Fall Blooming Asters

Fall Blooming Asters


Volunteers in the Garden



Wildflower Walk on Day after Earth Day

Earth Day hike in the Garden