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Crops are variously grouped and classified. They may be classified as cultivated crops such as potatoes and corn or as non-cultivated crops such as wheat and barley. Crops may also be grouped according to the duration of their growth. Annual crops complete their life cycle in one growing season. Biennials require two seasons to produce seed. Perennials grow for more than two seasons, producing seed each year.
Biennials crops complete their life cycle in one growing seasons.
Cultivated crops are wheat and barley.
Non-cultivated crops are potatoes and corn.
Crops may be grouped according to the duration of their growth.