![]() Spread in a thick enough layer, it blocks the growth of unwanted weeds that would otherwise compete with your ornamental plants. Interest and uses of pine bark mulchĪs we have seen, bark mulch provides very long-lasting protection for plants because it is resistant to wind and the elements. These studies have proven that the influence of pine bark is lesser, the only decrease in pH observed is in soils that are already acidic. ![]() Thus, humus-rich soils, whether clay or limestone, block pH variations. the number of ions in reserve on a clay-humus soil. This can be explained simply by the ‘buffering capacity’ of the soil, i.e. However, studies conducted in recent years tend to prove that this is not the case. We often read that bark mulch is not suitable for certain plants because it is said to acidify the soil too much. Once installed, this mulch does not fly away and stays in place without blocking water or gas exchange because it is relatively airy. A 10 cm mulch will take several years to decompose, which makes it both an economical and long-lasting solution. They are therefore ideal for mulching the base of plants that appreciate a rather acidic soil such as azaleas, rhododendrons, hydrangeas and all other heathland plants. Pine bark has an acidic pH (4.5) and does not decompose quickly. Pine bark can be used as mulch or in the composition of mixtures, especially for orchids. This mulch is then packaged in bags that can be found in most garden centers and even supermarkets. Once the trees are cut down for various uses, their bark is removed and recycled. It is generally produced in the southwest of France. What is bark mulch?īark mulch is made of maritime pine bark, as its name indicates. Easy to find in garden centers, it is used in the beds at the foot of shrubs and other ornamental plants. ![]() Pine bark is one of the best-selling mulch formulas in our country. ![]()
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