What is one of the seven basic landscaping principles of xeriscaping?

One of the seven basic landscaping principles of xeriscaping is mulching. Mulching plays a critical role in conserving soil moisture, suppressing weed growth, and improving soil health. By covering the soil with a layer of mulch, you create a barrier that reduces evaporation, allowing plants to retain water for longer periods, which is essential in xeriscaped areas designed for drought-resistant landscaping. Additionally, mulch can help regulate soil temperature, protect roots from extreme temperatures, and add organic matter to the soil as it decomposes.

In contrast, frequent watering is counterproductive to the xeriscaping philosophy, which stresses water conservation. The use of synthetic fertilizers can also be detrimental, as they may contribute to environmental pollution and are not typically necessary in a xeriscaped landscape, where native plants often thrive on natural soil nutrients. Heavy plant diversity, while beneficial for ecological reasons, is not specifically highlighted as a fundamental principle of xeriscaping in the same way that mulching is emphasized for its drought resistance and soil health benefits.