Sources 

• Arid Lands Greenhouses
  Online & Retail - A MUST Source (to visit call 1st (Tucson)
• Bob Smoley's Gardenworld
  Online - Specials, collections, + auction system! (WC FL; tourist destination!)
• Cactus By Lin
  Online Member Site (Victor Lindsey)
• Cactus & Succulent Society of America - SEED DEPOT
  On line - Quality inexpensive seeds; Lots of long time fun
• CSSA Annual Show and Sale (Late June)
  Retail Vendors - Huntington Botanical Gardens
• Digging Dog Nursery
  Online & Retail (Paper Catalog is Classic) Albion, CA (S Mendocino, NE Navarro)
• Ebay Store Cactus By Lin
  Online Member Site (Victor Lindsey)
• Fat Plants Information (some plants available also)
  Online Member Site (Victor Lindsey)
• High Country Gardens
  Online & Paper Catalog - reliable "standard" for water wise gardens
• J. L. Hudson, Seedsman
  Online - CA Public Seed Bank 105th year in operation 1911-2015
• Miles' To Go
  Online - Miles Anderson Contaro, AZ (N of Tucson, S of Jct 8 & 10)
• Moon-Sun Cactus and Koi Gardens
  Online & Retail (Winter Hours & Staffing In Effect: call for appt.)
• Mountain States Wholesale Nursery
  Wholesale (available retail) through Star Nursery- But excellent online plant data sheets + more
• Phoenix Desert Nursery
  Online & Retail - Seeds & Plants Phoenix (S of Airport, near jct 10 and 60)
• Plant Delights
  On line (Paper Catalog is Great); Raleigh, NC (see Aerial Video of Juniper Level Botanic Garden on You Tubr)
• Plants for the Southwest (and Living Stones Nursery)
  Online & Retail - Everything from Beginner to Specimen Plants (Tucson)
• Star Nursery (Southern Nevada Stores)
  Retail (selection varies from time to time)
• Waterwise Botanicals
  No mail order yet. Bonsall, CA (S of Temecula, N of Escondido)