Jon earned a Masters Degree in Agricultural Extension Education from the University of Tennessee and was active in vegetable production and marketing in East and Middle Tennessee. In 1989 he became Urban Gardening Coordinator for University of Maryland Extension (UME) in Baltimore City where he helped develop community gardens and trained and coordinated Master Gardeners. He's been an Extension Specialist, Vegetables/Fruits at HGIC since 1994 and served as State Master Gardener Coordinator from 1994-2018. He was appointed Center Director in 2007 and promoted to Principal Agent in 2013. Jon developed the popular University of Maryland Salad Table, trains Master Gardeners, and helps support the Grow It Eat It program.