Reviewed 17 October 2026 · schematic not to scale
Smother existing grass with clean cardboard and establish a small vegetable bed using mature compost and mulch.
- 1Checked clean soil with drainage
- 2Plain cardboard, tape removed and sheets overlapped
- 3Mature tested compost at an appropriate rate
- 4Clean mulch and root-zone irrigation
Site and operating requirements
- Identify crop, season, water quality, soil/medium and local heat. Measure materials before cutting and confirm support and drainage.
Tools and measuring equipment
- Tape, clean hand tools, crop labels, water/soil records and protective equipment for the selected operation.
Output and operating conditions
A managed planting bed with less digging; persistent weeds, poor drainage or contaminated soil require additional work.
Original access-friendly bed: 1 × 2 m. UMD example covers grass with cardboard then 5–10 cm compost; choose local depth and planting method for the crop.Parts, quantities and dimensions
| Part | Quantity | Specification / dimensions |
|---|---|---|
| Clean cardboard | 2 m² + overlap | Plain uncoated cardboard, tape/staples/plastic removed. Do not use waxed, glossy or contaminated packaging. |
| Mature tested compost and mulch | 0.1–0.2 m³ example | For a 2 m² bed, 5–10 cm compost is 0.1–0.2 m³ before settlement; this is volume arithmetic, not a nutrient application recommendation. |
| Water and hand tools | 1 set | Hose/drip, scissors, fork for targeted loosening if needed, labels and soil testing. |
Preparation and component checks
- Read the complete linked method, mark its edition, and create a measured component list and a labelled sketch before starting. Keep experimental changes separate from the published procedure.
- Prepare the work area and inspect every component. Run the lowest-risk dry or unpowered check before water, heat, moving parts or crop material are introduced.
Procedure
- 1
Check sunlight, drainage, soil contamination and perennial weeds before covering the ground. Test soil where history is uncertain.
- 2
Mark a bed reachable from both sides without walking on it. Cut or mow existing vegetation low.
- 3
Remove tape and staples from plain cardboard; lay overlapping sheets with no light gaps and wet to settle.
- 4
Add mature compost only at a soil-test-appropriate rate. If nutrients are already high, use an adviser-approved planting medium instead of adding more manure compost.
- 5
Plant into adequate rooting medium; open a suitable planting hole through the cardboard for transplants if required. Keep roots moist while establishing.
- 6
Mulch exposed areas with clean organic material, keep stems clear and install measured root-zone irrigation.
Safety and inspection
Keep raw manure away from ready-to-eat crops. Do not bury contaminated cardboard or assume sheet mulching remediates polluted soil.
Verify the result
Mulch conserves moisture; it does not remove irrigation, fertility or crop-rotation needs. Record materials and bed performance.
Measurement log
- Date, source materials, measured dimensions, inputs, weather/temperature, care, pests/odour, test results and output. Keep batch and location labels.
Maintenance and repeat checks
- Inspect weeds, slugs, moisture and drainage regularly; remove persistent weeds by their roots rather than simply adding endless layers.
- Rotate crop families and use soil tests to guide later additions. Replace damaged irrigation and replenish mulch only as needed.
Troubleshooting
- Unexpected decline, pests, odour, poor growth or animal distress
- Pause the affected activity, separate suspect material and check the guide’s moisture, heat, hygiene, drainage and care requirements. Get a qualified diagnosis before treatment or reuse.