This section is from the book "Commercial Gardening Vol2", by John Weathers (the Editor). Also available from Amazon: Commercial Gardening, A Practical & Scientific Treatise For Market Gardeners.
This is the popular name for Lunaria biennis (or L. annua). It is closely related to the Wallflower, and grows 2-3 ft. high, with violet-purple or white flowers in summer. It is grown chiefly for its large roundish seed pods, which, when ripe, have beautiful silvery partitions that sell well during the autumn and winter seasons for harvest festivals, room decorations, etc. The plant, which has large, heart-shaped, coarsely toothed leaves, is raised from seeds sown in shallow drills in April or May to produce flowers and silvery pods the year following. The form with variegated leaves is becoming known as a useful bedding or "dot" plant among dwarf er subjects such as Aubrietias, Forget-me-nots, Violas, Alyssums, etc.