The center part of the driveway is crushed bluestone that is set on top of a asphalt sub-base. Before the bluestone chips are installed a tar slurry is applied to the asphalt to help contain the chips. The total depth of the gravel is about an inch, however there is two inches of asphalt and 12 inches of compacted gravel beneath that.
Sweet tic-tac-toe design for a side garden. Simply design the grid, then add the plants. Start with cut-stone pavers, lay out the path, alternate crushed rock for easy drainage. Choose ground covers that can tolerate a little bit of foot traffic. Addition of fountain adds water interest.