What is a key principle of Xeriscaping?

A key principle of Xeriscaping is reducing or eliminating the need for irrigation. This approach focuses on designing landscapes that are sustainable and efficient in water usage, particularly in arid or drought-prone regions. By selecting drought-resistant plants, grouping plants according to their water requirements, and incorporating efficient irrigation methods, Xeriscaping minimizes water consumption while still allowing for beautiful and functional outdoor spaces.

This principle not only conserves water but also reduces the landscape maintenance efforts and costs associated with regular watering. In contrast, other options suggest practices that could lead to increased water consumption or unnecessary landscape complexities, which contradict the fundamental goal of Xeriscaping to promote water efficiency.