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You can eat the "scapes," theYou can eat the "scapes," the pointy (almost elfin), curly stalks, sometimes called flower stems, even "false flower stems," that develop on hardneck (or stiffneck) garlic. Softneck garlic does not produce a scape; it produces small cloves, which are also edible. As for harvesting garlic, you should wait until the foliage yellows or browns. This usually occurs sometime in July. Save a few cloves to plant this fall, for next year's harvest. We are not familiar with cutting the foliage to the ground. When you harvest, let us know if that has had an effect. Hope this helps!