Create a raised bed around a tree

Does the raised bed around the tree harm it?

Basically, putting up a raised bed around a tree is not a good idea. With that you take that Tree roots Oxygen away by artificially compacting the soil. You also deprive it of its opportunities to grow and spread. However, under certain conditions, you can still put your plan into action.

Do not build a raised bed directly on the trunk

First of all, the raised bed should not be built directly on or in front of the trunk. By “digging in” the trunk, you create a perfect breeding ground for putrefactive fungi - after all, the filling of the The raised bed was always moist and the air circulation between the bed and the trunk was due to the immediate spatial proximity of the bed cut off. In addition, the tree "breathes" through the trunk, among other things, which is why the oxygen supply subsequently suffers. With a raised bed around the tree, you should leave enough space between the bed and the tree

Tree trunk adhere to - the absolute minimum is 30 centimeters.

Do not completely obscure the root area

It is also better not to completely obstruct the root area with a raised bed. Here it is important to leave sufficient space, especially for the fiber roots - which are the only ones able to absorb water and nutrients. The fiber roots are always on the outer edge of the root disc and grow incessantly. You can use the Treetop roughly pinpoint where they are. It would be good not to completely seal off the root area - a narrow raised bed however, it should be fine for the tree in most cases.

What are the options for a raised bed around a tree?

Naturally, straight wooden boards cannot be used round raised beds build. However, you don't have to, because a polygonal bed hugs the tree just as well. A border made of wickerwork or lightweight plastic is also suitable. On the other hand, you should do without a stone raised bed - this is too heavy for the sensitive root area of ​​the tree.