Harvest garlic. Because of the exceedingly wet weather of the last month, the garlic in our Temple University Ambler garden is dying back much earlier than usual. If your garlic, too, has yellowing tops, it's best to pull it out. You don't want it to rot in the field. Once it's dug up, take nine heads with the leaves (tops) intact, make three bundles of three, and braid the strands.