Earth Discovery Institute

Earth Discovery Institute Environmental Education, Habitat Restoration, Science Service-Learning, Community Outreach for Conservation

EDI conducts education, restoration and community outreach activities at Crestridge Ecological Reserve, the San Diego National Wildlife Refuge, Sweetwater Marsh, Rancho Jamul Ecological Reserve, and Otay Valley Regional Park.

EDI Species of the Week: Shaw’s Agave (Agave shawii) 🌵Shaw’s Agave is a commanding presence, its large rosette of thick,...
06/05/2026

EDI Species of the Week: Shaw’s Agave (Agave shawii) 🌵

Shaw’s Agave is a commanding presence, its large rosette of thick, spine-edged leaves and a tall display of yellow blooms on spires. Native to a narrow strip of coastal Baja California, its northern range just barely reaches into San Diego County, making it one of the most geographically restricted agaves in existence. That limited range, combined with rapid urban development across the region, has taken a serious toll on wild populations. By 2008, the only remaining plant in the United States stood at the site of border fence construction. Recovery has not been easy. Shaw's Agave produces seeds and seedlings at a slow enough rate that natural reestablishment of truly wild populations remains unlikely on its own. However, through the dedicated efforts of community members and conservation organizations on both sides of the border, the species has been successfully transplanted into reserves, parks, and protected areas throughout San Diego and Baja California. A genuine restoration success story

🌿 Last week, our Executive Director, Ida, and Education Director, Ashley, had the opportunity to speak at San Diego Gree...
06/04/2026

🌿 Last week, our Executive Director, Ida, and Education Director, Ashley, had the opportunity to speak at San Diego Green Drinks about the work of Earth Discovery Institute!

A huge thank you to for inviting us to share how we are inspiring stewardship of San Diego's native biodiversity through environmental education and conservation. We had a great evening connecting with others who are passionate about protecting our local environment and sharing the work happening across San Diego County.

Thank you to everyone who came out, we loved the conversations and look forward to staying connected!

Please join us in welcoming Nathaniel Thomas-Stevens to Earth Discovery Institute as our new Conservation Manager! 🌿 Nat...
06/03/2026

Please join us in welcoming Nathaniel Thomas-Stevens to Earth Discovery Institute as our new Conservation Manager! 🌿 Nathaniel is a long-time EDI volunteer who already knows many of our projects, volunteers, and restoration sites. He brings a wealth of knowledge about Southern California's native plants and ecosystems, along with a passion for conservation and habitat restoration. We are excited to have him step into this role and help lead our conservation efforts across San Diego. Welcome to the team, Nathaniel! 🌵🐦‍⬛🦋🐛

EDI Species of the Week: Bernardino Blue (Euphilotes bernardino) 🦋🧡The Bernardino Blue is a study in contrast as its und...
05/29/2026

EDI Species of the Week: Bernardino Blue (Euphilotes bernardino) 🦋🧡

The Bernardino Blue is a study in contrast as its underwings display a delicate pattern of orange, white, and black, but open the wings and the palette shifts entirely to a striking blue-purple with hints of orange. This butterfly is found across Southern California into northern Baja California, southern Nevada, and western Arizona, inhabiting desert scrub, chaparral, and pinyon-juniper woodlands. Its distribution is closely tied to a single plant: California Buckwheat. The Bernardino Blue rarely strays far from this native shrub, which serves as its larval host plant and a primary nectar source for adults. Next time you spot a patch of California Buckwheat, take a closer look, you might have a Bernardino Blue neighbor you never knew about!

We’re excited to partner with the Oceanside Public Library for a special community event! 📚🌸Join Earth Discovery Institu...
05/27/2026

We’re excited to partner with the Oceanside Public Library for a special community event! 📚🌸

Join Earth Discovery Institute for The Wonders of Monarch Butterflies—a family-friendly program exploring the incredible life cycle of monarchs and how community efforts can help support their recovery.🌱

Enjoy a monarch life cycle bracelet activity and a native milkweed seed giveaway! 🦋

📅 June 10 @ 2:00 P.M.
📍 Civic Center Community Room, Oceanside Public Library
👨‍👩‍👧 All ages welcome

We hope to see you there!

🦋 Join us on June 20th for our very first Monarch Butterfly Festival! 🦋Celebrate these incredible pollinators with us wh...
05/26/2026

🦋 Join us on June 20th for our very first Monarch Butterfly Festival! 🦋

Celebrate these incredible pollinators with us while supporting monarch butterfly conservation efforts across San Diego County!

🌿 Shop native milkweed and pollinator-friendly plants
🏡 Pick up a monarch garden kit to create habitat at home
🎟️ Enter our raffle for a chance to win a monarch garden installation
🎨 Enjoy fun games and activities for kids
🦋 Browse monarch-themed swag and goodies

Can’t attend the festival? You can still make a difference! We currently have a $2,000 donation match opportunity to help support our work protecting monarch butterflies and local biodiversity.

https://www.earthdiscovery.org/donate

Join us at Canyon Connections, a free family event hosted by Friends of Tecolote Canyon! 🌿Enjoy a day filled with live a...
05/25/2026

Join us at Canyon Connections, a free family event hosted by Friends of Tecolote Canyon! 🌿

Enjoy a day filled with live animals, kids’ crafts, science activities, community booths, music, nature play, Kumeyaay culture, educational materials, and guided nature hikes. 🌸🌱

📅 Saturday, June 6, 2026
🕙 10:00 a.m. – 2:00 p.m.
📍 Tecolote Nature Center
5180 Tecolote Road, San Diego, CA 92110

EDI Species of the Week: Nuttall’s Snapdragon (Sairocarpus nuttallianus) 🐝💜The Nuttall's Snapdragon is an annual or shor...
05/22/2026

EDI Species of the Week: Nuttall’s Snapdragon (Sairocarpus nuttallianus) 🐝💜

The Nuttall's Snapdragon is an annual or short-lived perennial native to California's coastal sage scrub and chaparral ecosystems. Its blue-lavender flowers have been well studied for their remarkable pollination ecology, and a closer look reveals how precisely engineered they are. The flower features an inflated lower lip, veined in purple and white, that serves a dual purpose: a landing pad for visiting insects and a visual guide directing bees toward the flower's entrance. Access to the flower tube is not open to just any visitor, only bees of the appropriate size and weight are able to press the lip open and gain entry. Once inside, the bee makes contact with the anthers, and its back is dusted with pollen to be carried to the next flower. It is a finely tuned system, ensuring that pollination is carried out almost exclusively by small native bees.

Since January 2022, our Conservation Dream Team, volunteer heroes, interns, fellows, and partnering groups have planted ...
05/20/2026

Since January 2022, our Conservation Dream Team, volunteer heroes, interns, fellows, and partnering groups have planted ✨thousands✨ of cactus pads and native sage scrub species at El Monte Ecological Preserve in Lakeside to create native habitat for the Coastal Cactus Wren, as well as a suite of other species. 🌵🌱

In the last 4 years, we have made major progress with this project and are so proud of all the hard work that has been put into making magic happen at this site that was once a sand mine.

Whether you’ve participated in one or dozens of events out at El Monte - or have just followed along on the journey - we are beyond appreciative of your support and can’t wait to see what this wild space may look like in another 4 years! ☀️

🦋 Help us unlock our $2,000 matching fund before our Monarch Butterfly Festival on June 20th! 🦋Every dollar donated will...
05/19/2026

🦋 Help us unlock our $2,000 matching fund before our Monarch Butterfly Festival on June 20th! 🦋

Every dollar donated will be matched, dollar-for-dollar, up to $2,000 and supports EDI’s work protecting monarch butterflies, restoring habitat, providing environmental education, and connecting our community to nature and conservation. 💚

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El Cajon, CA
92021

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