What is a characteristic of cool season cultivars?

Cool season cultivars are specifically adapted to thrive in the cooler temperatures of spring and fall, making them distinct from warm season crops that flourish in hot weather. One important characteristic of cool season cultivars is their potential for mixing with one another, which can provide various benefits, including minimizing the incidence of disease. By creating a diverse planting with different cultivars, both genetic diversity and resilience against pests and diseases are enhanced. This practice can lead to healthier crops and higher yields.

The other options highlight misunderstandings about cool season cultivars; they do not exclusively thrive in summer, nor do they necessarily require special treatment in winter. Furthermore, the idea that they cannot be mixed overlooks the advantages of blending different types to create a robust growing environment.