July 24, 2026

UC Berkeley has cut the pipevine at Strawberry Creek

On Friday, excavation began and the California pipevine (Aristolochia californica) was cleared, the largest and most productive known breeding stand of the California pipevine swallowtail in the Bay Area, where surveys have recorded 1,000 to 2,000 caterpillars in peak months. It is the only plant this butterfly can breed on.

An adult California pipevine swallowtail, wings iridescent blue with a row of white spots, resting on an orange California poppy among green foliage
The butterflyA California pipevine swallowtail on a California poppy. It can breed on one plant and one only, and that plant is what was cleared.
An excavator standing on bare, stripped ground behind construction fencing where the California pipevine stand grew at Strawberry Creek, UC Berkeley
July 24, 2026The stand at Strawberry Creek, photographed the day excavation began and the pipevine was cleared.
Take action nowWhat's Happening

Photographed at the habitat, Friday July 24, 2026. See what we're asking the University to do →

Wild Harvest and Restoration Fund restores California native ecosystems through community wild harvest, habitat restoration, tribal resource partnerships, and wild agriculture research. See our four missions →

The Wild Harvest and Restoration Fund thank-you sticker, a circular die-cut showing a California pipevine swallowtail (Battus philenor hirsuta) with wings spread on California pipevine leaves, ringed by the words Save the California Pipevine and Swallowtails

Make a donation, get a sticker

Every donation comes with our pipevine swallowtail sticker, our way of saying thank you for keeping this habitat alive.

Your gift plants California pipevine, puts caterpillars into classrooms for free, and keeps our volunteer crews in the field every week.

Donate & get your sticker →

Included at every level. A 501(c)(3) public charity, so your donation is fully tax-deductible.

Upcoming events

Join us on the ground. All events are free and open to the community.

Sunday, November 8, 2026

Pipevine Rescue and Potting

📍 Strawberry Creek by Stephens Hall, UC Berkeley, then Gill Tract Community Farm, Albany  ·  ⏰ 1:00 PM PST – 4:00 PM PST

At 1pm we meet on the UC Berkeley campus at Strawberry Creek just south of Stephens Hall (map pin: https://maps.app.goo.gl/FPQdzw9KuCTHAnvNA) to rescue more California pipevine (Ar…

Saturday, November 14, 2026

Pipevine Planting: Friends of Alhambra Creek & Claremont Canyon

📍 Claremont Canyon, Oakland, and the John Muir National Historic Site, Martinez  ·  ⏰ 9:30 AM PST – 12:00 PM PST

One morning, two plantings of rescued California pipevine. In Claremont Canyon we plant with the Claremont Canyon Conservancy (claremontcanyon.org, volunteer days at claremontcanyo…

Sunday, November 15, 2026

Pipevine Planting: Lafayette Creeks Committee & Friends of Orinda Creeks

📍 Leigh Creekside Park, Lafayette, then San Pablo Creek, Orinda  ·  ⏰ 9:00 AM PST – 3:00 PM PST

From 9am to 1pm, planting rescued pipevine along Las Trampas Creek at Leigh Creekside Park with the Lafayette Creeks Committee, as part of their creekside restoration. In the after…

Sunday, December 6, 2026

Pipevine Propagation at the Gill Tract

📍 Gill Tract Community Farm, Albany  ·  ⏰ 12:00 PM PST – 4:00 PM PST

A Sunday of propagation. At noon we go onto the UC Berkeley campus to collect fresh California pipevine (Aristolochia californica) cuttings, then from 1 to 4pm we propagate them at…

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Our Flagship Program

Caterpillar Education Program

We bring the life cycle of the California pipevine swallowtail into classrooms and communities: raising caterpillars, growing their native host plant, and restoring habitat together. Hands-on, standards-aligned, and free to participating schools.

Community members and students examining a California pipevine (Aristolochia californica) cutting with young pipevine swallowtail caterpillars during a hands-on education session at UC Berkeley
Egg → Caterpillar → Chrysalis → Butterfly

Students witness every stage, and help build the habitat that makes it possible.

This planting season

Where should the pipevine go?

California pipevine is the only plant the pipevine swallowtail can breed on. Tell us about a spot that would work: a creek bank, a shady fence line, a corner of your own yard. We'll plant it with volunteers this winter.

Suggest a planting site

A 501(c)(3) nonprofit

Wild Harvest and Restoration Fund is a federally recognized 501(c)(3) public charity. Your donation is fully tax-deductible, and a Donation Acknowledgment Letter will be provided for your records.

Every dollar goes directly toward habitat restoration, community education, and supporting tribal food sovereignty.

Donate

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In the news

CBS News Bay Area

Clean energy construction project at UC Berkeley threatens native butterfly habitat

CBS News Bay Area reports on the clean energy project threatening the California pipevine swallowtail habitat along Strawberry Creek, featuring WHRFund founder Rosetta Wang.

Watch the segment ↗

Daily Californian

Campus construction plans could put native butterflies at risk

Coverage of the threat that UC Berkeley construction poses to the California pipevine swallowtail butterfly habitat.