Usually the garlic grown on our farm develops 10 to 12 leaves by mid-June. As the garlic plants mature, the lower leaves begin to turn brown, shrivel up, and fall off the plant one by one. We plan for harvest when 5-6 green leaves remain. Each green leaf represents a wrapper or skin you’ll have on the cured bulb. To test bulb size prior to harvesting you can push aside the soil around a few bulbs to assess bulb development and size. You will also be able to see if the bulb has clove divisions which signal bulb maturity. If left too long in the ground with the green leaves continuing to shrivel, the garlic wrappers are lost and the bulbs will open allowing for dirt and potential disease and pest to enter the bulb. If that happens, just use up those cloves first because they won’t last as long in storage.