Mary, Mary, quite contrary,

https://en.wikipedia.org/wiki/Mary,_Mary,_Quite_Contrary

Mary, Mary, quite contrary,
How does your garden grow?
With silver bells, and cockle shells,
And pretty maids all in a row.^[1]

Like many nursery rhymes, it has acquired various historical explanations. These include:

• That it is a religious allegory of Catholicism, with bells representing the sanctus bells, the cockleshells the badges of the pilgrims to the shrine of Saint James in Spain (Santiago de Compostela) and pretty maids are nuns, but even within this strand of thought there are differences of opinion as to whether it is lament for the reinstatement of Catholicism or for its persecution