Crescent Farm Workshop

About This Event

Citizen Science
July 25, 2026; 10am-12pm

Join us in the Arboretum Library for a special conversation exploring the power of science communication and community-driven discovery.

Crescent Farm Interpretive Horticulturist John Latsko and Arboretum Librarian Leena Waller invite you to a special video presentation featuring a recent conversation with author, bee photographer, and friend of the Crescent, Krystle Hickman, alongside citizen scientist Katelyn Liu.

Together, we’ll explore the growing role of science communication in everyday life and how community observation plays a vital role in ecological understanding and conservation. Discover how everyday people contribute meaningful data through citizen science—and learn simple ways you can begin documenting and sharing observations from your own backyard, neighborhood, or favorite natural spaces.

Whether you’re curious about pollinators, community science, or simply looking for new ways to engage with the natural world, this program offers inspiration and practical tools to get involved.

Hickman’s book, The ABCs of California’s Native Bees, will be available for purchase in the Arboretum Gift Shop.

Lasagna Mulching
November 14, 2026; 10am-12pm

Join Interpretive Horticulturist John Latsko for an engaging, hands-on Lasagna Mulching Workshop!

Discover how to build healthy, fertile soil using simple materials you may already have at home or can easily source locally. Rooted in the philosophy of “use what you have,” lasagna mulching is a practical, sustainable gardening method that transforms cardboard and organic mulch into rich, productive soil.

Whether you’re looking to remove your lawn, reduce weeds, or transition to a more water-wise landscape, this proven technique offers an effective and low-maintenance solution. Through a visual presentation and hands-on experience, you’ll learn the fundamentals of sheet mulching—and put them into practice by helping maintain Crescent Farm.

Please bring gloves and drinking water, and wear close-toed shoes and a hat for outdoor work.

Non-members, please purchase general admission here: LA Arboretum Ticketing Page

Crescent Farm began in 2015 as a compacted, nutrient-depleted lawn. Today, just under an acre has been transformed through thoughtful topographical design to slow, spread, and sink water, rebuild healthy soil, and support thriving biodiversity. With a focus on water, carbon sequestration, and habitat, it stands as a living example of a regenerative landscape in action.

The mission of Crescent Farm—and workshops like this one—is made possible through the support of generous grant funding. These contributions ensure that the knowledge, conversations, and access to this unique garden space remain free and open to the community.

While there is no cost to attend, your presence matters. Space is limited, and each spot represents an opportunity to engage in meaningful learning. If you register, we ask that you commit to showing up—or let us know if you’re unable to attend so your place can be offered to someone else.

By joining us, you’re stepping into the work of citizen science and science communication—exploring how regenerative landscapes function, why habitat building is essential, and how we can all participate in restoring ecological balance. The value of this shared knowledge and curiosity is truly priceless.