Enjoy a slice of the cactus-collecting life with a look into the ways people collect and enjoy some of the oddest plants in the world, then head to Scottsdale, Arizona to see the largest private collection of desert-area plants in the world. Also on the itinerary are visits to the Boyce Thompson Arboretum and an amazing collection at Bach's Nursery in Tucson, Arizona, where they have a better success rate with their individually raised saguaro cacti than Mother Nature herself. Finally, travel on Interstate 10 to Los Angeles for North America's largest cactus and succulent show - the Olympics of cactus cultivation.