The California Botanic Garden is the largest botanic garden in the state dedicated exclusively to California native plants. Its mission is to promote botany, conservation, and horticulture to inspire, inform, and educate the public and scientific community about California's native flora. The garden functions as a living museum, housing a curated collection of over 22,000 native plants, including rare and endangered species, spread across 86 acres. It actively engages in conservation initiatives such as seed banking, restoration programs, field studies, and laboratory research to protect plant species and natural habitats. The garden also serves as a research institution, offering graduate degrees in botany and maintaining a significant herbarium and library. Through public programs, events, and classes, it aims to connect communities with the rich diversity of California's flora and encourage the use of native plants in gardens.

