Xeriscape water saving landscaping refers to residential and park landscaping that make use of various methods that minimize the needs for water use and is a low maintenance form of gardening. A xeriscape water saving landscaping also emphasizes plant species that are native to the region, which means they are well adapted to the low nutrient, alkaline soil conditions often found in arid climates such as the Southwest. It also means they will not be as susceptible to heat stress during the hottest months. Xeriscape water saving landscaping always starts with a plan. In developing a plan, landowners must consider the lay of their land, the things on it that can be changed, and things like existing structures that must be worked around. Landscaping considerations include eye appeal, slopes and valleys, placement of walkways, irrigation methods, ease of maintenance, and water requirements. Landowners may want to consult a landscape architect, nurseryman or agricultural extension agent during the design phase.