Farmer Gricoller was the author of Farmer Gricoller's Farming Manual. Gricoller was apparently an experienced horticulturalist, as his or her work dealt with various methods of enriching crop production primarily through fertilisation.

During My Arm's Big Adventure, players use Gricoller's manual to help grow Goutweed on the roof of the Troll Stronghold east of the Fremennik Province.

Community content is available under CC-BY-SA unless otherwise noted.