Since it is not a solid surface, loose DG provides excellent drainage. ... During the winter, when rain is frequent, loose decomposed granite paving will become mushy and muddy. Pro Tip: Decomposed granite is a permeable material that prevents water runoff.

Is decomposed granite water permeable?

This is an ideal stabilizer because it requires little to no maintenance, does not fail over time, and has excellent erosion control. It is also permeable, allowing water to easily pass through; since it does not contain any oils, resins, polymers, or enzymes, it will not cause water pollution.

Is crushed granite good for drainage?

Granite Rock for Landscaping Advantages

Since it's not a solid surface, crushed granite also drains extremely well so you don't have to worry about puddles in your yard and it's easy to remove if you decide to add a new flower bed or garden feature.