GardenRx Start an Earthworm Farm and Harvest Castings CuprockDIY 2019-03-07 #gardenrx #earthworms #gardening #wormcasting #harvestearthworm #earthwormfarm GardenRx: Start an Earthworm Farm and Harvest Castings / PBS-TV’s Garden Rx starring Loren Nancarrow shows you how to build your own earthworm farm and harvest casting. Like this:Like Loading... Related