The organ pipe cactus (Stenocereus thurberi) is so named because of its multi-limbed grow habit which does resemble the pipes of the grand organs found in churches. You can only grow organ pipe cactus in warm to hot climates where there is room for a 26-foot tall plant. However, the cactus is slow growing, so planting organ pipe cactus in a container for a few years is a fun way to grow this interesting plant.