Reeds can form roots up to 2 meters deep, some Chinese reed varieties reach even deeper. Therefore, when planting reeds in the garden, it is essential to lay a root barrier. What that is exactly, how you set it and what it costs, you can find out below.

Reed absolutely needs a root barrier

What is a root barrier?

A root barrier is usually used in the form of a tension tile (also called a root protection sheet by the manufacturers), the material of which is very tear-resistant and therefore impenetrable for the roots. These tiles are mostly made of HDPE (high-pressure polyethylene), but there are also some suppliers who offer rhizome barriers made from recycled materials.

How thick should the root barrier for reeds be?

Root barriers are offered in different strengths. Thicknesses of 1.2 to 2mm are common, with the vast majority of suppliers offering films with a thickness of 2mm. With this strength, you can be sure that your reeds or Chinese reeds will not be able to penetrate the foil.

How deep should the root barrier be?

A depth of 30 to 40cm is sufficient for low-growing varieties of Chinese reed and reed, medium-tall types should be given a space of about 50cm and giant Chinese reed should have room for up to one meter in the ground. A planting distance of 30 to 120 cm should be maintained between the individual plants, depending on their size; the same applies to the distance to the edge.
Be sure to cover the floor! Otherwise the roots only grow downwards at first, but then spread out from there to the sides.

Set root barrier

  • Using a spade, dig a rectangular or circular pit of sufficient depth.
  • Place the foil in the pit and press firmly. If the fleece is not large enough and there is overlap to cover the entire area, the ends must be connected or welded with an aluminum bar so that the roots do not find their way out here.
  • It is essential that the ends of the foil protrude outwards so that the reeds do not steal over them.
  • Then add soil and your reed plants to the foil.

What does root barrier cost?

The prices of rhizome barriers vary depending on the manufacturer and, above all, the thickness of the film. In general, you can expect a meter price of around four euros (at a height of 70cm and a thickness of 2mm).
When buying, make sure that the film is free of harmful substances and rodent-proof.

tips

Instead of setting a root barrier, you can also concrete the area.

Category:

Vegetable garden