Groundskeeper

A groundskeeper was a worker responsible for the maintenance of a property's landscape architecture and other arboreal or floral features.

Boothby was groundskeeper of Starfleet Academy in San Francisco for much of the 24th century, and was known to eschew the use of herbicide in favor of more traditional gardening techniques such as pulling weeds by hand. 

Ned Quint was the groundskeeper for Felisa Howards house at the Caldos colony on Caldos II.