The Huntington Desert Garden is one of the largest and oldest assemblages of cacti and other succulents in the world. Nearly 100 years old, it has grown from a small area on the Raymond fault scarp when in 1907-1908 William Hertrich brought in plants from local nurseries, private residences, public parks, and from collection trips to the Southwest and Mexican deserts. Today the two dozen families of succulents and other arid adapted plants have developed into a 10-acre garden display, the Huntington’s most important conservation collection, a most important mission and challenge.