A plant's ability to withstand periods of limited water while maintaining growth, survival, or overall health.
Some plants are naturally adapted to dry conditions and can continue growing with less water than other species. These adaptations may include deep root systems, small or waxy leaves, water-storing tissues, or growth habits that reduce moisture loss.
Most drought-tolerant plants still require regular watering while becoming established. Once their root systems are developed, however, they are often able to thrive with little supplemental irrigation.
The level of drought tolerance varies between species, with some plants surviving extended dry periods while others simply require less frequent watering.
Choosing drought-tolerant plants can reduce water use, lower maintenance requirements, and improve garden performance during dry weather. These plants are especially valuable in regions with limited rainfall, water restrictions, or challenging growing conditions.