Raised beds for vegetables - Knowledgebase Question

Iselin, Ne
Question by dhrutiasha
June 11, 2009
I want to grow few vegetables in my back yard. and i am planning to make raised beds for them. Can you guide me how to go through that and do i need to place weed blocker fabric at the bottom of the bed?

Answer from NGA
June 11, 2009


You won't need weed block fabric at the bottom of the bed because you'll be adding about 18" of topsoil to the bed. This amount of topsoil will keep weeds and grasses from growing. First level the area so the timbers will lay flat on the soil surface. Lay out the timbers, overlapping each layer at the corners like a log cabin. This will help strengthen the beds. Next drive large 6" spike nails into the timbers to anchor the second level to first (this can be repeated for a third or forth level if you want beds that high). This can be a tough procedure as the long nails tend to bend easily. To make it easier, drill pilot holes, slightly smaller than the nails, into the timbers before driving in each nail. Place nails in 3 places along the timber, but not at the overlapping corners. After bed timbers are nailed together, drill 3/8" holes downward through the corners of the timbers where they overlap. Drive 3/8" rebar rods (available from many hardware stores) cut long enough to go through the timbers and into the soil a foot deep. Use a sledge hammer and don't allow any rebar to extend above the top timber for safety reasons. Repeat the rebar anchoring along the length of the beds (once for beds one timber long and twice for beds two timbers long). Then fill the beds with topsoil and enjoy. Thanks for the question!

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