Mulch layer

What is a mulch layer?

A mulch layer is a layer of material (e.g. wood chips) that covers the ground level.

Benefits of a mulch layer

• Improving water management :

  • Water infiltration improves.

  • Soil dries out less quickly.

  • Soil decomposition is prevented.

• Improving soil quality :

  • The organic matter content in the soil increases.

  • Soil life is stimulated.

  • The soil structure improves.

  • Soil erosion is prevented.

• Flattening of temperature extremes :

  • In colder periods the soil is kept warmer.

  • In warmer periods, water evaporation is reduced.

• Less weed growth

How to apply a mulch layer?

• A layer of wood chips 8 to 12 cm thick is spread over the existing soil.

• Optionally, a border can be placed to keep the mulch in place in windy conditions. Leaf litter can also be left there.

• Applying a layer of cardboard under the mulch layer will further discourage weeds from growing.

What should you definitely not do?

• Do not apply too thick a layer of mulch, as this will disrupt the oxygen balance in the soil.

• Lay down a root cloth, because this disrupts the exchange between the mulch layer and the soil and plastic ends up in the soil.

• Do not place the wood chips close to the trunk, otherwise they will become damaged.