>>1664889>what sort radius would it service/benefit?Maybe 1 foot at max, but if there's plants nearby, they can reach from further away with their roots. Check out those 55-gallon drums used as planters. They have a pipe in the middle for holding compost and worms are able to enter/exit the pipe through holes in the sides of the pipe. The width of those barrels isn't much. So, that should give you some idea of the radius.
