Is annual ryegrass categorized as a warm-season turfgrass?

Annual ryegrass is classified as a cool-season turfgrass rather than a warm-season one. This classification is based on its growth patterns and optimal temperature preferences. Cool-season grasses, like annual ryegrass, thrive in the cooler temperatures of spring and fall, typically performing best in temperatures ranging from 60 to 75 degrees Fahrenheit. They tend to enter dormancy during the hotter summer months, making them less suited for warm, tropical climates where warm-season grasses, which grow best in heat and humidity, dominate the landscape.

Annual ryegrass is often used for overseeding in warm-season areas during the cooler months to provide temporary green cover, but it does not have the characteristics of warm-season grasses, which prefer and actively grow in higher temperatures. The option indicating that it depends on the region reflects some misunderstanding about the grass's fundamental classification, as it consistently remains a cool-season grass regardless of geographic differences.