The duration of cold exposure required for garlic bulbs to initiate the reproductive process, specifically bulb formation, is a critical factor in successful cultivation. This cold treatment, termed vernalization, prompts internal physiological changes essential for proper development. Without adequate chilling, plants may produce smaller bulbs or even fail to bulb at all, resulting in reduced yields. The specific time necessary varies depending on the garlic variety.
Proper vernalization is vital for maximizing garlic bulb size and overall crop productivity. Historically, understanding this cold requirement has allowed growers to cultivate garlic in diverse climates by artificially chilling bulbs before planting. This technique expands the geographical range where garlic can be successfully grown, contributing to global food security and diverse culinary traditions. The process also impacts the flavor profile and storage characteristics of the harvested garlic.