Description
In May 2024, The San Diego Natural History Museum (The Nat) opened The Nature Trail Garden, transforming a corner of Balboa Park— visited by 14M annually— into a living showcase of Southern California’s biodiversity. Encircling the museum, the garden is designed as both habitat and classroom, demonstrating how native plants can thrive in public spaces while deepening connections to nature.
Led by horticulturist Carla Quimson, the garden is rooted in community. A Garden Advisory Committee of California native plant experts and The Nat scientists provides guidance, ensuring the garden reflects both ecological integrity and educational purpose. More than 70 volunteers, The Nat Garden Corps, are trained to care for the garden, lead tours, and model best practices in native horticulture.
Community engagement has been pivotal. In spring 2025, over 200 volunteers joined a planting party that added 600 plants representing 150 species, many rare or endemic to San Diego and Baja California, like Baja California Bird Bush Ornithostaphylos oppositifolia, Otay Manzanita Arctostaphylos otayensis, Elephant Tree Bursera microphylla, Santa Catalina Island Ironwood Lyonothamnus floribundus ssp. Floribundus plus more are greatly enhancing habitat value. Beyond the trail, The Nat hosts an annual Garden Fair, welcoming thousands of visitors to experience firsthand the connections between native plants, pollinators, and people.
This presentation will highlight three key lessons: the power of grassroots stewardship, the value of integrating science with community partnerships, and the role of visible public gardens in shifting perceptions. Together, these efforts demonstrate how planting a garden can spark a broader movement—cultivating not only biodiversity, but also the communities that sustain it.
Presenter Bios
Carla M. Quimson
The San Diego Natural History Museum
Carla Quimson is a horticulturist and landscape designer dedicated to advancing native plant awareness in Southern California. At the San Diego Natural History Museum, she leads the Nature Trail Garden, engaging volunteers, scientists, and community members to educate visitors about the importance of native plants. Carla’s love for the natural world began in the Philippines, shaping her passion for connecting culture, community, and ecology. Her work centers on education and stewardship, with the goal of transforming public landscapes into thriving green corridors for biodiversity.