A vegetable or edible plant that grows best in cool temperatures, typically during spring and fall, and often declines in summer heat.
Cool-season crops are adapted to mild weather and continue growing when temperatures are too cool for many warm-season vegetables. Many can tolerate light frost and often produce their best flavor and quality during cooler parts of the year.
As temperatures rise, some cool-season crops begin to bolt, shifting their energy from leaf or root production to flowering and seed production. Once this happens, harvest quality often declines.
Because of their temperature preferences, these crops are commonly planted early in the growing season or again for a fall harvest.
Timing is critical when growing cool-season crops. Planting too late can expose them to heat stress, reduced yields, and premature bolting. Understanding which vegetables prefer cooler weather helps gardeners plan planting schedules and extend harvests beyond the peak of summer.