What could happen if rye doesn't die out after a cool spring?

If rye does not die out after a cool spring, it may weaken or compromise the health of the warm-season turf. Ryegrass is a cool-season grass, and if it remains alive into the growing season when warm-season grasses are actively trying to establish and thrive, it can create competition for resources such as sunlight, water, and nutrients. This competition can hinder the growth of the warm-season grasses, potentially leading to a decline in their vigor and overall health. As a result, the presence of ryegrass can have a detrimental impact by overshadowing or outcompeting these warm-season varieties, thereby compromising their ability to flourish during their optimal growing conditions.

In contrast, if the ryegrass were to die out as expected, the warm-season turf would have the opportunity to take full advantage of the growing conditions without interference.