The Plant Collection
This worldwide collection features plants of documented wild origin from nearly every continent, with an emphasis on plants from mediterranean climates (California, Mediterranean Basin, Australia, South Africa, and Chile).
The arrangement of the outdoor collections is primarily geographic by continent of origin or by region including, , , , , , , , and .
The Garden holds one of the largest and most diverse collections in the United States:
16,865 accessions (each accession represents one or more plants in the Garden)