Tierra Rica Worm Farming System
by Rand Berger
My system has evolved over many years - 10 to be exact.
I have been fascinated by worms, composting and gardening for a good bit longer than that but about 10 years ago I decided to start farming worms in a bed so that I could harvest castings for my garden.
I live in South Central NM which has an arid climate, hot summers and cold winters so success here comes with many challenges.
What I have learned over the years here in New Mexico is that you need shade in the summer, sun in the winter, a roof all the time, insulation, elevated beds and protection from birds, racoons, skunks, dogs and chickens.
I started out with a 2x12 frame set on the ground and filled with compost. The worms multiplied and thrived for a while then I noticed the water requirements going up and up. I started digging around and found the entire bed had been invaded by tree roots.
I had located the bed under a cottonwood tree for the shade not realizing it's thirst for not only water but nutrients. Next I added a 2x6 bottom