Sustainable gardening is a practice that aims to create and maintain gardens in an environmentally friendly and resource-efficient way. This involves using organic gardening techniques, conserving water, minimizing chemical pesticide and fertilizer use, and promoting biodiversity. Sustainable gardening also focuses on using locally adapted plant species, composting organic material, and reducing waste through recycling and reusing materials. Overall, the goal of sustainable gardening is to create a healthy, productive garden that has minimal impact on the environment.