Final answer:
Kentucky bluegrass is known to possess greater cold hardiness than perennial ryegrass, allowing it to withstand colder temperatures and survive winter conditions better. Perennial ryegrass, in contrast, is more susceptible to freezing temperatures and could face damage or death due to reduced cold hardiness.
Step-by-step explanation:
The question reviews the cold hardiness of two types of grasses: Kentucky bluegrass and perennial ryegrass. This is a topic relevant to botany, a subfield of biology. Cold hardiness refers to a plant's ability to withstand cold weather conditions. Kentucky bluegrass is known to have excellent cold hardiness, which allows it to survive and remain dormant during the winter months in many climates where other species may not. On the other hand, perennial ryegrass tends to have less cold hardiness compared to Kentucky bluegrass and is more sensitive to freezing temperatures, which can damage or kill the plant.
It is also worth noting that plants, such as grasses, do not become 'older' in the sense that they exhibit aging signs like flowering earlier each year. Instead, environmental conditions, species genetics, and management practices influence their growth and reproduction cycles. The statement 'The grass typically flowers earlier and earlier every year as it becomes older with each passing year.' is misleading, as there is no cumulative aging process in grasses akin to what is observed in humans or animals.
Therefore, the statement is generally true: Kentucky bluegrass does have greater cold hardiness than perennial ryegrass.