Season extension refers to techniques used by gardeners and farmers to prolong the growing season of crops beyond the typical limits imposed by climate. This can involve using structures like greenhouses, hoop houses, or cold frames to protect plants from frost and harsh weather, allowing for earlier planting in spring and later harvesting in fall. Additionally, season extension can include practices such as using row covers or mulch to retain heat and moisture in the soil. These methods help to create a more favorable environment for plants, enabling growers to maximize their yields and diversify their crop production throughout the year.