Introduction

Decomposed granite, also known as DG, is a type of landscape material that consists of small pieces of granite rock that have been weathered and are now in various shades of brown, gray, and tan. It is a popular material used for pathways, garden borders and as a substrate for planting. In this article, we will explore the benefits of decomposed granite for plants.

Water Retention

One of the most significant benefits of decomposed granite for plants is its ability to retain water. DG is porous and allows for water to penetrate through to the soil below, which can help prevent moisture loss due to evaporation. This is particularly important in areas with hot, dry climates where soil moisture can be quickly depleted. The water retention properties of DG also help to reduce the amount of water that needs to be applied to plants, making it a popular choice for water-wise landscaping.

Drainage

Decomposed granite is also beneficial for plants due to its ability to provide good drainage. The porous nature of DG allows for excess water to drain away from the plant roots, preventing waterlogging and reducing the likelihood of root rot. This is particularly important for plants that require soil that is well-drained, such as succulents and cacti. DG can also help to prevent soil compaction, which can be detrimental to plant growth and health.

Aeration

Another benefit of decomposed granite for plants is that it helps to promote soil aeration. The porous nature of DG allows for air to circulate through the soil and reach plant roots. This can help to promote healthy root growth and prevent root suffocation. Soil aeration is also important for the health of microbial communities in the soil, which play a critical role in nutrient cycling and maintaining healthy soil ecosystems.

Nutrient Retention

Decomposed granite can also help plants by retaining nutrients in the soil. The porous nature of DG allows for the accumulation of organic matter and nutrients, which can help to promote healthy plant growth. The nutrient retention properties of DG also help to reduce the amount of fertilizer that needs to be applied to plants, making it a popular choice for organic gardening.

Conclusion

Decomposed granite is an excellent choice for plants due to its ability to retain water, provide good drainage, promote soil aeration, and retain nutrients. It is a popular landscaping material that can be used in a variety of applications, including pathways, garden borders, and as a substrate for planting. By incorporating decomposed granite into your landscape design, you can help to create a healthy and sustainable environment for your plants to thrive.