Answer: Cardoon is a plant closely related to artichoke, but grown for the edible leafstalks rather than for the flower buds. To prepare the leaves for harvest, blanch them by gathering them together and tying them up. Then wrap with paper to exclude light. Allow 1 month's blanching before harvest; parboil until tender, then fry; or serve boiled with butter. The flowers of a cardoon are not edible.
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