A worm tower is an underground compost system that delivers nutrients directly to plant roots without a compost bin, without turning, and without any smell. Kitchen scraps go in the top. Worm castings spread through the soil below. The bed feeds itself. The idea is almost too simple to believe: bury a pipe with holes in a raised bed, drop scraps in, let worms handle everything.
What you need:
– A section of drainpipe — 30cm diameter, 50cm long
– A drill with 10mm bit
– A lid or upturned pot to keep rain out
– A garden bed to bury it in
How to build it:
– Drill holes every 5cm across the lower two-thirds of the pipe
– Dig a hole in the centre of your garden bed deep enough to bury the pipe with 10cm above soil level
– Backfill around the pipe and firm soil gently
– Add a handful of compost and a few worms from the garden to start
– Place lid on top
How to use it:
– Drop small kitchen scraps in weekly — vegetable peelings, tea bags, fruit cores, crushed eggshells
– Worms enter through the drilled holes, eat the scraps, and carry castings back into the surrounding soil
– The bed receives a slow, continuous feed of the richest fertiliser on earth
– Never needs turning. Never smells. Never attracts flies if the lid stays on
One tower feeds a 2-metre radius of garden bed. Two towers handle a full-sized raised bed. Your food waste becomes plant food without ever touching a compost heap.