- Four timber posts, 70cm high - not CCA (Copper, Chrome Arsenate, which contains arsenic)
- Two timber planks, 20cm x 5cm x 1.25m (not CCA)
- Two timber planks, 20cm x 5cm x 2.5m (not CCA)
- Drill
- Wood screws
- Geotextile fabric, optional - 3mx2m
- Tacks, if using geotextile
- Manure, two barrowloads
- Rock mineral fertiliser, a cupful
- Compost, a barrowload
- 1.Sink the posts into the ground just 10cm deep - the weight of the soil will hold them in place.
- 2.Drill pilot holes in the planks first before driving in the screws to fix the planks to the posts.
- 3.Half-fill the box with backyard soil. Then line the sides and base with a large piece of geotextile fabric, if wanted. Tack into place. The fabric acts as a root barrier and allows water and nutrients to run through.
- 4.Add bulky, aged manure - sheep, cattle or horse - compost, more manure and, finally, a rock mineral fertiliser.
- 5.
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