(Another cute flower costume, this time for a young girl, though there's no special reason an adult woman could not do something similar.)
Pink silk stockings, white satin shoes, tulle skirt, short and full; cuirass bodice bordered with flowers; wreath of flowers in hand.
Source: Holt, Ardern. Fancy Dresses Described, 5th Edition. London: Debenham & Freebody, 1887.
(Here's a specific example of a flower costume, with three different variations, the first of which is illustrated at left.)
Short white dress trimmed with deep rich-coloured violet pansies, one large one forming the head-dress the petals standing well round the head, like a brim; the bodice made of dark petunia velvet, arranged to simulate the flower, the soft peach crêpe de chine draped with pansies; a fan in the shape of a pansy.
Or, dress of amber-coloured soft silk, trimmed with purple bands, outlined with gold; loops of purple and amber-coloured ribbons on the top of the sleeves; head-dress in the shape of the flower; white bibbed apron, embroidered in purple; a gold basket of hearts-ease carried.
Or, dress of violet tulle and satin with profuse trimmings of the flower; wreath and shoes to correspond.
Source: Holt, Ardern. Fancy Dresses Described, 5th Edition. London: Debenham & Freebody, 1887.