Sunday, March 10, 2013

Artichokes

Today, globe artichoke cultivation is concentrated in the countries bordering the Mediterranean basin. The main European producers are Italy, Spain, and France. In the United States, California provides nearly 100% of the U.S. crop, and about 80% of that is grown in Monterey County; there, Castroville proclaims itself to be "The Artichoke Center of the World", and holds an annual artichoke festival. Most recently, artichokes have been grown in South Africa in a small town called Parys located along the Vaal River.

In the US, large globe artichokes are frequently prepared by removing all but 5–10 mm (0.2–0.4 in) or so of the stem. To remove thorns, which may interfere with eating, around a quarter of each scale can be cut off. To cook, the artichoke is boiled or steamed. The core of the stem tastes similar to the artichoke heart, and is edible. Salt may be added to the water if boiling artichokes.

Artichokes Being Cooked photo by PepperedjaneLeaving the pot uncovered may allow acids to boil off. Covered artichokes, in particular those that have been cut, can turn brown due to the enzymatic browning and chlorophyll oxidation.

Placing them in water slightly acidified with vinegar or lemon juice can prevent the discoloration. Leaves are often removed one at a time, and the fleshy base eaten, with hollandaise, vinegar, butter, mayonnaise, aioli, lemon juice, or other sauces. The fibrous upper part of each leaf is usually discarded. The heart is eaten when the inedible choke has been peeled away from the base and discarded. The thin leaves covering the choke are also edible.

Artichokes can be produced from seeds or from vegetative means such as division, root cuttings or micropropagation. Though technically perennials that normally produce the edible flower only during the second and subsequent years, certain varieties of artichoke can be grown from seed as annuals, producing a limited harvest at the end of the first growing season, even in regions where the plants are not normally winter-hardy. This means home gardeners in northern regions can attempt to produce a crop without the need to overwinter plants with special treatment or protection. The recently introduced seed cultivar 'Imperial Star' has been bred to produce in the first year without such measures. An even newer cultivar, 'Northern Star', is said to be able to overwinter in more northerly climates, and readily survives subzero temperatures.

Commercial culture is limited to warm areas in USDA hardiness zone 7 and above. It requires good soil, regular watering and feeding, plus frost protection in winter. Rooted suckers can be planted each year, so mature specimens can be disposed of after a few years, as each individual plant lives only a few years. The peak season for artichoke harvesting is the spring, but they can continue to be harvested throughout the summer, with another peak period in midautumn.

When harvested, they are cut from the plant so as to leave an inch or two of stem. Artichokes possess good keeping qualities, frequently remaining quite fresh for two weeks or longer under average retail conditions. Apart from food use, the globe artichoke is also an attractive plant for its bright floral display, sometimes grown in herbaceous borders for its bold foliage and large purple flower heads.
USDA Artichoke Nutrient Data

Text Credits: Wikipedia || Wikipedia
Image Credits: Artichokes Being Cooked || USDA Artichoke Nutrient Data

No comments:

Post a Comment