Another name for the hyacinth is the "Lily among Thorns", a name from the Song of Songs that the Church Fathers applied to the Blessed Virgin:
"I am a rose of Sharon, a lily of the valleys. As the lily among thorns, so is my love among the daughters." (Canticles 2:1-2)
Many flowers have ancient names that refer to our Holy Mother. During the Reformation these were replaced, especially in England. You can read more about these and Mary Gardens Here.