By eHow Home & Garden Editor
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Garlic is classified in two separate groups known as the hard-necked garlic (Ophioscorodon) and soft-necked garlic (Allium Sativum). The hard-necked garlic is the oldest and purest garlic, while the soft-necked garlic have been cultivated and bred through a process of selection by growers from the hard-necked type. Five varieties of garlic can be listed: Purple-Stripe, Artichoke, Silverskin, Porcelain and Rocambole.
eHow Home & Garden Editor