Perennial ryegrass has greater low-temperature hardiness than Kentucky bluegrass.

• A. True
• B. False
• C. Not sure
• D. They are equal.

Answer: (B)

Low-temperature hardiness describes how well a grass survives freezing temperatures and recovers after winter. Kentucky bluegrass typically shows greater winter hardiness than perennial ryegrass, thanks to its genetics and growth habit, including robust underground structures that help it endure frost and cold stress. Perennial ryegrass, while it establishes quickly, is generally less cold-tolerant and more prone to winterkill or slower recovery in harsh winters. So, the statement is not correct. In practical terms, bluegrass is often preferred for winter survival in colder climates, while ryegrass adds rapid establishment but may require overseeding or protection in very cold conditions.