You have to pay attention to this
The grain size of the bark mulch has an influence on the air circulation. The smaller the grain, the more restricted the soil aeration and the more wet the substrate. At the same time is the effect of Bark mulch against weeds restricted. Therefore, do not choose a material that is too fine. Products with sizes between 0.5 and 80 millimeters are available in stores. Special markets offer decorative substrates with pieces of bark up to 120 millimeters in size. A rule of thumb is that the larger the area to be covered, the larger the pieces of mulch should be.
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Tips for choosing a size
- fine substrates decompose more quickly into humus
- Conditions must be renewed more regularly
- coarser versions provide more effective and longer lasting protection
- fresher Mulch(€ 13.95 at Amazon *) with a pleasant forest smell, decomposes more slowly
- optical preferences influence the choice
Flower boxes and planters
To the Potting soil A fine material with a grain size of between five and 20 millimeters is sufficient to cover it in the pot. The proportion of foreign substances such as wood particles and branches influences the rate of decomposition. This takes about nine to ten months, with the sifted substrates being converted more quickly.
Flower beds and flower beds
For Bark mulch on the flowerbed or smaller areas, a medium grain size is recommended. This varies between ten and 40 millimeters. The mulch cover lasts up to 15 months and is suitable for planted outdoor areas and rock gardens. Here, however, you should pay attention to the needs of the plants and, if necessary, use a mineral mulch material. Few drought-loving species feel comfortable in a layer of bark mulch.
Garden paths
If you have large areas, the area between bushes or Garden paths with bark mulch want to cover, you need a coarse-grained bark material with a thickness of 20 to 60 millimeters. Such a bark mulch bed is reminiscent of the natural soil in the forest and exudes a similar smell. It is important that you replace the material about every one to two years in order to maintain a safe and comfortable walking experience.
Tips
You should value quality, because high-quality substrates have been sieved before filling. In the case of cheap offers, the proportion of fine materials is very high, which favors waterlogging and restricts ventilation. These mulch materials rot at a faster rate.
Play areas
The coarsest grain sizes of 60 to 12 millimeters make sense under swings and climbing frames. Such pieces of bark are characterized by their soft and resilient properties. The particles do not settle in the shoe profiles and the rotting process proceeds slowly. This means that a material exchange is necessary after 18 months at the earliest and three years at the latest.