Which statement is true about low-temperature hardiness?

Which statement is true about low-temperature hardiness?

• A. Kentucky Bluegrass has greater low-temperature hardiness than Annual Bluegrass.
• B. Buffalograss has greater low-temperature hardiness than Kentucky Bluegrass.
• C. Creeping Bentgrass has greater low-temperature hardiness than Buffalograss.
• D. Centipedegrass has greater low-temperature hardiness than Kentucky Bluegrass.

Answer: (A)

Low-temperature hardiness is about how well a turfgrass can survive freezing winter conditions and still come back in spring. Kentucky bluegrass is a cool-season grass well known for strong winter survival in northern climates; it tolerates freezing temperatures and regrows effectively after winter stress. Annual bluegrass, while also a cool-season type, is less winter-hardy and more prone to winter injury in severe cold. Because Kentucky bluegrass generally beats annual bluegrass in enduring cold and recovering after freezes, the statement comparing them is true. The other options involve warm-season grasses, which are much less tolerant of cold than cool-season species, so they wouldn’t be described as having greater low-temperature hardiness than Kentucky bluegrass.

Low-temperature hardiness is about how well a turfgrass can survive freezing winter conditions and still come back in spring. Kentucky bluegrass is a cool-season grass well known for strong winter survival in northern climates; it tolerates freezing temperatures and regrows effectively after winter stress. Annual bluegrass, while also a cool-season type, is less winter-hardy and more prone to winter injury in severe cold. Because Kentucky bluegrass generally beats annual bluegrass in enduring cold and recovering after freezes, the statement comparing them is true. The other options involve warm-season grasses, which are much less tolerant of cold than cool-season species, so they wouldn’t be described as having greater low-temperature hardiness than Kentucky bluegrass.