Maturity Indices Garlic can be harvested at different stages of development for specialty markets, but most garlic is harvested when the bulbs are well mature.
Harvest occurs after the tops have fallen and are very dry.
The cloves should be firm to the touch. Grades include U.S. No. 1 and unclassified, and are based primarily on external appearance and freedom from defects. The variety of garlic affects potential storage life, and the recommended conditions for commercial storage depend on the expected storage period. However under these conditions, bulbs will eventually become soft, spongy and shriveled due to water loss. Good airflow is also necessary to prevent any moisture accumulation.