Decomposed granite (DG) is well-known for its many uses. Aside from its aesthetic appeal, DG is also the choice of many for being environmentally friendly. What makes decomposed granite environmentally superior compared to other aggregate materials?
Decomposed granite is the perfect choice for you if you want an eco-friendly landscape. Here’s why.
1. DG is natural.
Decomposed granite is an innate product of nature. It is formed from the natural weathering and erosion of old granite, the best-known igneous rock. Despite the negative connotation with the word decomposed, this granite is more durable than marble. Completely natural decomposed granite is free from harmful chemicals and additives. This makes DG a kid and pet-friendly choice for your landscaping projects.
2. DG is an excellent non-organic mulch.
Decomposed granite is widely used in many xeriscapes and landscapes as a mulch alternative. Since DG is very permeable, it handles water extremely well. DG slows down evaporation and promotes water conservation. It is the perfect material and soil amendment for drought-tolerant plants. DG prevents water from evaporating easily, keeping the soil moist while conserving water. It’s non-organic so it doesn’t attract pests, reducing the need for pesticides.
3. DG provides nutrients to surrounding soil and plants.
Granite is one of the most mineral-rich among igneous rocks. Decomposed granite continues to weather after it is used for plants. The minerals from DG provide nutrients to the surrounding soil and plants. Granite and DG are rich with important primary minerals like quartz, potassium feldspar and sodium feldspar. This reduces or even eliminates the need for synthetic fertilizers.
4. DG doesn’t decay.
Despite the word “decomposed,” granite only weathers but does not decay. Non-organic mulches like decomposed granite can last longer than other ground cover and mulch materials. Since it does not decay, DG won’t attract pests or bugs. This reduces the need to use pesticides on your mulches which can harm other neighbouring plants.
5. DG is stable.
Since DG is more stable and settles better than other gravel materials, it proves to be a good choice for pathways and play area. With its fine texture, decomposed granite is the key to an attractive landscape if compacted well.