Spineless Cactus in the Patch
This direct color photograph print will give a good idea of the density which a field of Mr. Burbank's cactus attains. All of the cactus shown here is under four years old, some of it less than three. Each plant was started simply by planting a single slab in the hard adobe soil-a soil on which few useful plants will grow. On the acre on which this picture was taken there is still a growth of cactus, in spite of all that has been cut off, weighing more than one million pounds. The rapidity of cactus growth is illustrated by the fact that a single hot day in June will add a ton in weight to this acre cactus patch.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 1 Chapter 1