Here are some examples:

"When daisies pied, and violets blue" (Love's Labour's Lost, Act 5 Scene 2)

"With sweet musk-roses, and with eglantine;" (A Midsummer Night's Dream, Act 2 Scene 1)

"When daffodils begin to peer," (A Winter's Tale, Act 4 Scene2)

"...and there is pansies, that's for thoughts... There's fennel for you, and columbines" (Hamlet, Act 4 Scene 5)

"the fairest flowers o' the season/Are our carnations" (A Winter's Tale, Act 4 Scene 3)

"In a cowslip's bell I lie:" (The Tempest, Act 5 Scene 1)