What is the Best Gravel for Drainage? | Pepper's Home & Garden
Crushed gravel is one of the best choices for drainage. Use #3 or #57 crushed stone for your drainage needs. Select an angular crushed gravel—smooth stones drain poorly. Gravel between 0.5 and 1.5 inches is the best choice for drainage. Make sure you choose a grade of gravel that is between 0.5 and 1.5 inches in size.