The San Diego Bonsai Club lists several bonsai vendors in the San Diego area. Kuma Bonsai nursery is the only full-service bonsai nursery in all of San Diego county. Kuma Bonsai nursery is located at 1131 Pepper Drive, in El Cajon, Calif. It is open Wednesday, Thursday, Saturday, and Sunday between 9 a.m. and 4 p.m. The nursery opens on some Fridays; one can call to make an appointment.
There are many vendors of bonsai located around San Diego county, such as Armstrong Garden Center, City Farmers Nursery, Sunrise Growers, and Walter Andersen Nursery. One can also purchase live bonsai trees online from vendors listed on San Diego Bonsai Club's website, such as Anderson's La Costa Nursery. Ebay often offers bonsai at a lower cost than physical nurseries or other online vendors.
One benefit of ordering bonsai trees from online vendors is that one can often find bonsai that are difficult to locate at a physical nursery. When buying live plants online, shipping time must be considered, and it is often worthwhile to purchase expedited shipping in order to minimize the time that the live plants spend in transit; this is especially true if the online vendor is far from San Diego, say in Florida for example.