The best size of gravel depends on the intended landscaping use and type of rock. To line or mulch a garden bed with smooth gravel, use rocks 1- to 2-inches in diameter. Generally, 10 to 18 mm (about ...
Gravel garden pathway leading to a house - Photos ... Some of the most common types of rock to use in landscaping include crushed marble and limestone. Crushed rock compacts more densely on ...