In Tasmania, S phagnum moss grew more than ten times as quickly in sheltered sites than higher sites. In Victoria, it grew more than twice as fast in sheltered sites. Some shading protects Sphagnum from drying out in summer while a lack of shade may allow other plants to outcompete Sphagnum. Shrubs are often cut to enable easier harvesting. Harvesting and management Most moss harvesting sites show signs of degradation, including altered drainage and a decline in plant growth.
Greatest deterioration occurs where drains are excavated.
The intensity of moss harvesting at a site affects its overall recovery and regeneration capacity. Sphagnum regeneration is slow, or sometimes absent, where a bare peat surface is left after harvesting. Fertiliser is sometimes used after harvesting to promote moss growth, however further work is required on its effects. The use of fertiliser may encourage weeds which hinder moss growth rates, cause burning of peat surfaces and result in straggly, poor quality moss strands. The use of machinery cuts up bog surfaces, and creates an uneven surface.