In-Ground Worm Composting Tower
A buried pipe with holes that lets compost worms travel between kitchen scraps and garden soil, feeding plants as they go.
Estimated cost
$5 – $15
Estimated time
20 – 40 minutes
Lifespan
3–5 years
Soil needed
None — composts kitchen scraps in place
Weight empty
2–3 lbs
Weight full
10–15 lbs
Best for
Raised beds and in-ground plots that need steady worm castings
Placement
Bury in the center of a bed or between heavy feeders like tomatoes and corn. Keep the lid above soil level.
Boards to Buy
| Boards to Buy | Quantity | What You Use Them For |
|---|---|---|
| Wide PVC pipe or bucket, 6 inch diameter | 1 | Tower body |
| Red wiggler worms | 1/2 lb | Composting workforce |
| Shredded paper or dry leaves | 2 cups | Bedding |
- ·Drill with 1/4 inch bit
- ·PVC cap or small saucer lid
- ·Kitchen scraps
Steps
- 1Drill 1/4-inch holes all over the bottom two-thirds of the pipe.
- 2Cut the pipe so 3–4 inches stay above soil level.
- 3Dig a hole and bury the pipe in the bed center.
- 4Backfill around the pipe with soil.
- 5Add bedding, then a small handful of worms.
- 6Top with kitchen scraps and replace the cap.
- 7Add scraps weekly and cover with fresh bedding.
Tools needed
- ·Drill
- ·Shovel or post-hole digger
- ·Saw if trimming pipe
Common mistakes to avoid
- ·No drainage holes — worms drown and scraps rot
- ·Adding meat, dairy, or oily foods
- ·Forgetting to bury the tower deep enough
- ·Letting the contents dry out completely
Maintenance tips
Add a handful of scraps weekly. Cover with bedding after each addition. Replace the tower if it cracks or warps.
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