Welcome
Our mission is to conserve, grow and share the world of plants to build resilience and empower the community in the stewardship of all life.
Botanic gardens that center their collections on Mediterranean-climate, drought tolerant plants occupy a special niche in the world of horticulture. Our collections — shaped by these climates from California and the Southern Hemisphere — aren’t just beautiful; they demonstrate extraordinary biodiversity and strategies for surviving dry summers and drought, while providing rich opportunities for research and conservation, and serving an urgent role as public models for water-wise landscapes.
Discover The Arboretum!
Quick Links
Read our past Newsletters and Arboretum Updates to learn more about our challenges and successes, our goals and hopes for the future, gardening tips, special events and more!
Arboretum By The Numbers
Active Volunteers
Volunteer service hours contributed annually
Student workers on-site annually
Interns gaining hands-on experience
Members providing critical financial support
Acres of plant collections from around the world