Sustainable landscaping requires fewer resource inputs such as pesticides and fertilizer to create a more environmentally friendly and beautiful landscape, while reducing maintainability. Sustainable landscaping is both cost efficient and functional in saving on water usage and creating a more self-sufficient garden for years to come. The harmful effects of non-sustainable landscape practices are many and include harm to native flora and animal habitats by invasive plants and species, harm to humans from drinking water polluted by runoff from chemicals in toxic pesticides, and harm to all life by over-use of limited natural resources.