Select shady areas for the moss rocks for best results. Place real rocks throughout the landscape. Place the rocks first, before adding moss. Make irregular arrangements of stones heaped together and lying next to each other, the way they appear in nature. This effect works well near fountains, pools and under trees. Place boulders and large rocks toward the back of the arrangements with smaller rocks tumbled in front, as though they fell there.
Arrange smaller moss rocks as edging for shady flower beds or walkways. Line the rocks up side by side so they touch, placing them as a border for the flower bed or walkway. Using small moss rocks as edging also helps to reduce erosion.
Place moss boulders and large moss rocks at intervals in flower beds and other planting areas. Space them irregularly, with some forward and some toward the back, to create a natural effect.
Create your own moss rocks with a mixture to help the moss grow. The Landscape Design Site recommends mixing porcelain clay with water, fish emulsion and live moss. Measure 3 cups of water into the bucket. Mix a large fistful of clay into the water and stir it in well. Stir in 1 cup fish emulsion. Tear 1 cup of live moss apart into small strands. Stir the moss into the mixture.
Apply the moss mixture with a paintbrush to real rocks and stones. Brush it on rocks used for landscaping accents, rock gardens and edging.