Her ramlet jeg ihvertfall over en genial måte å bygge kjøkkenhagen opp. Gleder meg til å sette igang. Så takk til: http://www.backyardgardening.net/article/raised-wood-bed/
Nyt lørdagen!
Step 1: Cut the wood
Pressure treated lumber is perfectly safe to use in the garden, but that doesn’t mean you want to inhale it, so work outside and wear a dust mask.
Cut your 8 foot long 2×12s in half (do not cut your 10 foot long 2×12s).
Cut your 8 foot long 4×4 into 8 1 foot lengths.
step 2: Do your layout
Layout the boards in rough fashion where you want them to lay. You do not need to dig up any sod, but if you like you can dig up the sod directly under where the boards will be, just to a depth of a couple inches.
Assemble the boards by first screwing a 4×4 piece to the ends of your 2×12 10 foot pieces. The 4×4 pieces are your corner blocks. Then stand up the boards, using an assistant if needed, and screw the 2×12 4 foot pieces (you made when cutting your 8 foot lengths in half) to the 4×4s thus forming the ends of your box.
Your box is now done, it’ll be heavy but you can with effort slide it around if you need to reposition it, if your ground isn’t flat and there are gaps use a shovel to dig down the high spots to better sit the box. You do not need to anchor it, it is heavy enough to sit still (especially after adding the dirt), but if you like you may drive short bits of rebar into the ground next to the inside corners.
Once you have it situated where you absolutely want it, move on to the next step.
Step 3: Cardboard
You now have a box filled with grass, this will not do. Lay down a thick layer of brown corrugated cardboard (the plain stuff), or newspaper. Either is perfectly safe to use in the garden and will fully decompose, but not before killing any grass below it. They’ll also provide compost and food for worms.
Step 4: Yard Debris
You have a perfect opportunity now to kill two birds with one stone. If there is any yard debris you want to get rid of, anything you’d normally compost, spent flowers, perennial or shrub clippings, kitchen scraps, grass clippings, you can dump it all into your boxes. The only caveat is if you add a lot of woody material also add a bag of blood meal to balance out the nitrogen. This material will slowly decompose once buried, feeding worms and providing the soil with nutrients way deep in the root zone.
I recommend directly using compost. Fill the boxes up with any compost you have, then at most garden centers you can buy bagged composted cow manure, do so and fill it up to the top. You could use regular top soil or garden soil, but compost is only slightly more expensive (pennies) and much more nutritious. It will not burn or harm or infect your plants, so go for it. You can also often get compost delivered by dump trucks from landscape companies. You will need around 100 cubic feet of dirt total, so you’re looking at a pallet of bags, or a single dump truck run.
Why it works
Your raised bed provides some protection to your crops from critters (You can also easily run a small wire fence around it, stapled to the wood). It will heat up quicker in the spring, it has excellent drainage. 12 inches of really good soil is enough for most plants, whose roots only exist in the top 12 inches of soil. The soil will also be loose, allowing crops such as carrots or sweet potatoes to grow well. You also have one less foot to stoop down when working the soil, thus saving your back.
You can put raised beds in your backyard, side yard, even your front yard. Sometimes people build many beds and then instead of fencing them all individually (assuming they have critter problems) then build one big fence around the whole group.
Your overall startup cost, (mostly wood and dirt) will be expensive, a couple hundred dollars. And it may not seem like a money saving proposition to do this. However these start-up costs are only at the beginning, you will not need to buy more dirt or wood on a yearly basis, and you’ll be able to use these beds for many years. As such the free food you’ll get from your garden will eventually more than cover the cost of creating
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