Scorzonera

Black Oyster-plant. Black Salsify. Scorzonera Hispanica.

This is a hardy perennial plant, introduced from the south of Europe, where it is indigenous. The root is tapering, and comparatively slender,—when well developed, measuring about a foot in length, and an inch in diameter near the crown, or at the broadest part; skin grayish-black, coarse, somewhat reticulated, resembling the roots of some species of trees; flesh white; leaves long, ovate, broadest near the end, and tapering sharply to the stem. They are also more or less distinctly ribbed, and have a few remote teeth, or serratures, at the extremities. When in flower, the plant measures about four feet in height; the stalk being nearly cylindrical, slightly grooved or furrowed, smooth, and branched towards the top. The flowers are large, terminal, yellow; the seeds are whitish, longer than broad, taper towards the top, and retain their vitality two years. An ounce contains about two thousand five hundred seeds.

Soil and Culture.—Though a perennial, it is generally cultivated as an annual or biennial, in the manner of the carrot or parsnip. Thompson says, "It succeeds best in a light, deep, free soil and an open situation. It is raised from seed, which may be sown in drills one foot apart, covering with soil to the depth of half an inch. As it is apt to run to seed the same year in which it is sown, and consequently to become tough and woody," the planting should not be made too early, particularly in the warmer sections of the country. A second sowing may be made about four weeks from the first, "as a precautionary measure, in case the plants of the first sowing should run. The young plants, when three or four inches high, should be thinned out to eight inches asunder in the rows. Towards the middle or last of September, the roots will have attained sufficient size to be drawn for immediate use: others will come in for use in October and November. In the latter month, they will be in perfection; and, before the closing-up of the ground, a quantity may be taken up, and stored in sand for the winter. When the ground is open, the roots may be drawn from time to time, as required for immediate use. About the middle of April, the roots remaining in the ground will begin to run to flower; after which they soon become hard, woody, and unfit for the table. Before this takes place, however, they may be taken up, and stored in sand, where they may be kept for use till May or June."

To raise Seed.—Allow a few well-grown plants to remain in the ground during winter; or select a few good-sized roots from those harvested in autumn, and reset them in April, about eighteen inches apart, covering them to the crowns. The seed will ripen at the close of the summer or early in autumn. Seed saved from plants of the growth of two seasons is considered best; that produced from yearling plants being greatly inferior.

Use.—It is cultivated exclusively for its roots; no other portion of the plant being employed in domestic economy. The flesh of these is white, tender, sugary, and well flavored. They are boiled in the manner of the parsnip, and served plain at the table; or they may be cooked in all the forms of salsify or scolymus. Before cooking, the outer, coarse rind should be scraped off, and the roots soaked for a few hours in cold water for the purpose of extracting their bitter flavor.