The artichoke plant is a tall, thistle-like plant
reaching a height of 3 to 4 feet and width of 6 feet. It
blooms blue flowers if the edible bud is allowed to mature.
Be cautious not to confuse the globe artichoke with
Jerusalem artichoke, sometimes sold in produce markets and
grown in the field for animal feed. The edible portion of a
Jerusalem artichoke is the underground tuberous root.