Pruning ornamental grasses involves cutting them back once a year, usually in late winter or early spring before new growth starts. Use sharp shears to trim the grass down to a few inches above the ground. For cool-season grasses, pruning may be lighter, removing only dead or damaged blades. Clearing old growth helps encourage healthy, fresh blades and keeps the plant looking neat and vibrant through the growing season.

Many ornamental grasses are highly drought-tolerant once established, making them excellent choices for low-water gardens and dry climates. Their deep, fibrous root systems allow them to access moisture deep in the soil and survive extended dry periods. While young plants may need regular watering to establish strong roots, mature ornamental grasses often thrive with minimal supplemental water, maintaining their beauty even during hot and dry conditions.