Soils that have organic matter also provide beneficial nutrients to plants. Improve the soil prior to the installation of any irrigation system. Grading and soil improvements should be done prior to the installation of irrigation systems. Mulching Mulched planting beds are an ideal replacement for turf areas. Mulches cover and cool soil, minimize evaporation, reduce weed growth, and slow erosion.
Mulches also provide landscape interest.
Organic mulches are typically bark chips, wood grindings, or bagasse. Inorganic mulches include rock and various gravel products. Place mulch directly on the soil or on breathable fabric. Avoid using sheet plastic in planted areas. There are many attractive less-thirsty garden species available for use in the tropical Xeriscape, including numerous popular flowering trees, shrubs, and vines.