Which characteristic is most important for plants used in xeriscaping?

In xeriscaping, the foremost characteristic of plants is low water requirements. This landscaping approach focuses on conserving water by utilizing drought-tolerant plants that are well-adapted to arid conditions. The primary goal of xeriscaping is to reduce the need for irrigation, making it crucial to select plants that can thrive with minimal water.

Plants with low water requirements not only survive in dry environments but often have adaptations such as deep root systems, succulent leaves, or thick cuticles that help them conserve moisture. This capability is vital in regions where water scarcity is a concern, and it allows for a sustainable landscape design that supports local ecosystems while minimizing water usage.

In contrast, plants with high water dependency would not be suitable for xeriscaping as they would require regular irrigation to flourish, defeating the purpose of this water-efficient practice. Rapid growth rates and bright flowering seasons may be desirable attributes; however, they are not as essential as the ability to withstand dry conditions in the context of xeriscaping.