• Moss refers to a group of rapidly spreading, nonflowering plants which grow to create a heavy, sponge-like mass on grass or on the ground. Moss reproduces from microscopic spores on the moss foliage, which continually separates from the mother plants and quickly increase the area of infestation. Moss commonly occurs on poorly fertilized and compacted soil, overly wet grass, and grass which is growing in shade. The best treatment for moss is through an improvement of the general growing conditions and the use of recommended chemicals.
  
  

Spiking

• Since moss thrives in wet soil, one of the best ways to discourage moss is to improve the drainage in the soil by spiking the affected areas. This helps to improve the drainage and reduces the level of compaction in the soil. Spiking can be achieved by driving a garden fork into the affected area at 6-inch intervals.
  
  

Overwatering and Drainage

• Overwatering is also a common reason for the emergence of moss. Do not overwater the lawn even during summer unless the turf is showing indications of wilting. In lawns which need to be watered consistently, it is best to ensure that there is adequate drainage in the ground and that the water does not accumulate. If the ground has a tendency to get waterlogged, it is important to build a simple soak-away system at the lowest point of the lawn.
  
  

Baking Soda Remedy

• A simple home remedy for getting rid of moss employs the use of baking soda. Mix together a small 8-oz. box of baking soda with 2 gallons of lukewarm water. Stir to dissolve thoroughly, and then use a spray bottle to spray on the mossy areas. Let dry completely. This treatment gives best results when done during late winter or early spring. After moss is completely gone, cover area with compost, peat moss or topsoil.
  
  

Herbicides

• There are a number of commercial herbicides in the market which effectively treat moss with active ingredients consisting of iron or special soaps. The majority of moss herbicides are safe to use around humans and animals. According to Washington master gardener program coordinator, Steve Whitcher, these herbicides are also environmentally safe. However, the use of herbicides is not likely to completely eradicate moss in lawn unless there are attempts to fix poor growing conditions of the lawn as well.