Which landscaping strategy is least likely to require additional water use?

Utilizing drought-tolerant native species is indeed a landscaping strategy that is least likely to require additional water use. Native plants have adapted to the local climate and soil conditions, often thriving with minimal supplemental irrigation. These plants are typically conditioned to survive periods of drought, making them an excellent choice for sustainable landscaping that conserves water.

In contrast, planting ornamental trees might require regular watering, especially when establishing younger trees. Traditional lawns often demand substantial water for maintenance, particularly during hot months to keep them lush and green. Creating a vegetable garden can also necessitate increased water use, particularly in hot climates where crops may need frequent irrigation to grow successfully. Therefore, incorporating drought-tolerant native species is the most efficient way to promote a landscape that minimizes the need for additional water resources.