I’ve just spent the weekend making a hochbeet, which is an above-ground flower or vegetable garden. Here is what it looks like today before we put the final layer of soil in.
I found the plans on the internet. It is simple to make and the total cost for materials was 86 Euros. We bought everything at Baumax. Here’s how it works:
The box itself is 1 meter wide by 2 meters long and 84 centimeters high. After constructing the box with lumber, screws and metal corner braces, you line the bottom with metal mesh to keep out underground critters. Staple that well all around the sides. Then cover the inside sides with a plastic tarp to keep the water from leaking out.
Now for your layers: First layer in is wood, branches and twigs, this helps with aeration. Then a layer of dried grass with soil attached. Then a layer of dried leaves and grass. Finally, good soil to a depth of about 30-35 centimeters.
This system allows you to plant earlier in the season and grow late into the season as well. We are goiung to grow veggies: salad, melanzane, tomatoes, courgette, etc.