Plant of the Day

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December 11, 2025

MILKWORT

In olden times, the Milkwort (Polygala vulgaris), bore the names of Cross-flower, Rogation-flower, Gang-flower, and Procession-flower, which were given it because, according to ancient usage, maidens made garlands of the flower, and carried them in procession during Rogation Week. At this period it was customary to offer prayers against plagues, fires, and wild beasts, and as the bounds of the parish were traversed on one of the days, it was also termed Gang Week. This custom was a relic of the ancient Ambarvalia. The bishop, or one of the clergy, perambulated the limits of the parish with the Holy Cross and Litanies, and invoked the blessing of God upon the crops; on which occasion, Bishop Kennett tells us, the maidens made garlands and nosegays of the Milkwort, which blossomed in Rogation Week, the next but one before the Whitsuntide.

Gerarde relates that, in Queen Elizabeth’s time, Milkwort-flowers were “vulgarly knowne in Cheapside to the herbe women by the name of Hedge Hyssop.” The plant was called Milkwort from an old belief that it increased the milk of mothers who took it.

A Javanese species, Polygala venenata, is greatly dreaded by the natives of Java for its poisonous effects; violent sneezing and faintness seizes anyone touching the leaves of this ill-omened plant.