"Here We Go Gathering Nuts in May". Has a dance that goes with it that became an American play-party.
There is also another play-party -- "Way Down Yonder in the Paw-Paw Patch".

Among the Child Ballads there's:
"The Devil's Nine Questions" - parsley, sage etc.
"The Gardner"

"All Around my Hat" A 19th century popular song that has older elements.
"The Holly and the Ivy"
"Sprig of Thyme"
"The Seeds of Love"
"The Three Sisters" - Cornish -- has a muddled refrain -- Jennifer, Gentle, and Rosemary -- which may once have been plant names.

Cheers, Joy