Measure a 45cm length of PVC piping. Drill random holes around the pipe. I just used the largest drill bit I had. Make sure you leave a 5 cm section at one end of the pipe hole-free, as this will be above ground.
This is what it looked like. In hindsight I think it could have done with a few more holes. |
Dig a 40cm hole in a spot where you want the tunnel to be. I chose to put mine in between the rows of broad beans I have growing. The hole will need to be deep enough so that the 5cm "hole free" section of the pipe is just above ground level.
Give the pipe a gentle tap into the bottom of the hole (I used the flat of the spade) to secure it in place. Carefully back-fill the hole so that no soil goes into the pipe.
Put food scraps in the top and push down with a stick. I haven't totally filled mine yet. I want to see how quickly the worms are attracted to the tunnel. It's easy to add more scraps as they become available. The only scraps I wouldn't suggest putting in is onion peel and citrus.
I used old saucers turned upside down with a rock on top to cover the tunnels. Hopefully this will stop the rain filling them up and unwanted animals getting in. The tunnels can easily be pulled out and placed in other areas in the garden once the scraps have been broken down and there is no room left in the tunnel.