Let’s learn how to build a trench garden bed (sometimes called lasagna bed)!
The steps where you add organic materials don’t have to be in any specific order, nor do you have to use these exact materials. Just use what you have!
First take out the topsoil, which is darker in color and goes down about 15cm (here at least).
Then dig down another 30-85cm, and put the subsoil in a different pile.
Then add some sticks and rusty, crushed tin cans to your bed, which add iron to the soil.
Tear up some paper and toss it in the hole.
Then add fruit peelings and vegetable waste. NO meat or cooked foods, and few citrus peels, please!
Then add cardboard, nicely torn up.
Sprinkle in a little old manure-it should not smell. If it does, it is too new.
Add some dried grass. Green grass will take nitrogen from plants first, so use dried grass.
Shovel ALL the subsoil in the hole.
Shovel ALL the topsoil on top. The bed should be raised above the surface now.
Make rows and plants. Then mulch! An now you are done.