Moss is a combination of shade, acidity, compaction, and moisture.
The layer of moss covering the soil must be removed in some fashion before attempting repair and/or seeding.
Four factors contribute to Moss growth.
1.Highly acidic soil creates a favorable environment for Moss.
2.Excessive moisture promotes the fungal growth responsible for Moss.
3. Compaction affects grass root development, thereby allowing shallow rooted Moss to out-compete it.
4. Shade is another factor that affects grass vigor, and promotes out-competition for growth.
1. Use a metal rake, thatcher, or shovel to remove the top 1-2″ of sod with moss layer.
2. Aerate using a core plugging machine or tow behind tool.
3. Apply lime at a high rate. Ususally about 50 lbs per 1,000 square feet.
4. Apply new top soil, loam, or soil/sand mix. Apply seed to this new soil and rake lightly.
4. Shade is another factor that affects grass vigor, and promotes out-competition for grow
1. Maintain tall tree & shrub growth to allow proper sunlight penetration and ventilation.
2. Test your soil and apply Lime regularly to maintain a pH between 6.5-7.
3. Prevent over watering and pooling of rain near slopes. Watch for water drippage from heavy tree canopies or gutter spouts.
4. Aerate once to twice yearly to prevent compaction and promote grass root growth.