In warm climate regions of the United States, which of the following grasses is commonly used as a perennial lawn?

• A. St. Augustine grass
• B. Bermuda grass
• C. Turf-type tall fescue
• D. Kentucky bluegrass

Answer: (C)

In warm climates, lawns need a grass that stays alive and green through heat and drought year after year. Turf-type tall fescue fits this role because it’s a perennial cool-season grass with a deep, strong root system. Those deep roots help it access water deeper in the soil, giving it better drought tolerance than many other cool-season grasses. That combination of being long-lasting (perennial) and relatively resilient to heat means it can form a durable, enduring lawn in warmer regions when you provide adequate irrigation and proper mowing. Kentucky bluegrass struggles more in extreme heat, while St. Augustine and Bermuda are warm-season types that can dominate in hot areas but don’t offer the same cool-season endurance and recovery behavior that tall fescue provides under the right management.