[Of obscure origin.] A poor or inferior quality of asparagus. Also sprue grass.

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1846.  Soyer, Cookery, 41. Throw in the sprue and let it boil very fast until tender. Ibid. Get some fresh sprue grass.

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1884.  Girl’s Own Paper, Feb., 219/3. Long, thin straggling asparagus, commonly known as sprue.

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1895.  Times, 3 April, 3/4. Sprue, 9d. to 1s.; asparagus, 1s. 6d. to 3s. per bundle.

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