The Greenhanded
From Tolkien Gateway
The title or nickname given to Holman of Hobbiton, who gardened there long before his descendant Sam Gamgee took on that role. 'The greenhanded' seems to be meant as a descriptive nickname, so he was most likely the founder of the gardening tradition that was passed on through his family. Both his son Halfred and grandson Holman followed this same tradition, taking the surname Greenhand. Holman Greenhand passed on his gardening skills to his distant cousin Hamfast Gamgee, and in turn Hamfast's son Sam took on the mantle of gardener in Hobbiton.