Garlic

Allium sativum

Garlic is the most pungent common allium, with a sharp heat that mellows dramatically with age or heat. Its early-season scapes are also an important Northeast market ingredient.¹

An intact garlic clove is comparatively quiet. Crushing it brings enzymes and sulfur-containing precursors together, producing thiosulfinates responsible for much of the familiar pungent aroma.²

Garlic originated in central Asia and has been cultivated for roughly 5,000 years. It is usually propagated from cloves because it rarely produces true seed.³

“Elephant garlic” is a misleading name: it belongs with the leeks and is not a true garlic. In Maine, hardneck garlic is generally the dependable type; its flower stalk is the scape, and the small structures in its flower head are often bulbils—little clonal propagules—rather than seeds.³

A garlic clove is a single swollen storage leaf wrapped around a young shoot, rather than a miniature multilayered onion. It contains much less water than an onion scale and a higher concentration of fructose-based carbohydrates, helping account for garlic’s density and ready browning.⁴

Hardneck garlic is particularly at home in the Northeast because it tolerates cold winters and reliably produces a scape in early summer. The scape is not just a stem to remove: it is an edible flowering stalk whose swollen tip would become an umbel of bulbils, and its mild garlic flavor gives the plant a second harvest before the bulb is ready.³

After harvest, curing dries the outer wrappers and neck so the bulb can hold through the winter. UMaine recommends a warm, dry, well-ventilated curing period of roughly three to four weeks, followed by cool, dry storage; refrigeration and sealed plastic encourage sprouting or decay.³