Name a key sustainable practice in landscape management.

Using native plants to reduce water and maintenance needs is a key sustainable practice in landscape management because native plants are adapted to the local climate and soil conditions. This adaptation often means they require less water, reducing the demand on local water resources, particularly during dry seasons. Additionally, native species typically require less maintenance than non-native plants, which may need more frequent pruning, fertilization, or pest management.

Incorporating native plants into landscaping supports local ecosystems by providing habitats for local wildlife and promoting biodiversity. This practice aligns with sustainable landscaping goals, which seek to create environmentally responsible and resource-efficient landscapes.

The other options tend to contribute to less sustainable practices. Using synthetic materials can lead to issues with drainage and heat retention in the environment. Planting only exotic species may disrupt local ecosystems and reduce biodiversity, potentially harming native plants and animals. Watering consistently regardless of weather can lead to overwatering, waste water, and increased costs, especially in periods of sufficient rainfall.