Merrill graduated Cum Laude from Washington State University with a BS degree in Ornamental Horticulture. Merrill’s career in public horticulture included posts at Idaho Botanical Garden in Boise; The Oregon Garden in Silverton; and Elizabeth F. Gamble Garden in Palo Alto. He currently serves as a reviewer for the Plant Collections Network of the American Public Gardens Association. He couldn’t have dreamed a better job in which to close his professional life than at the Jensen-Olson Arboretum where he worked for 14 years, retiring in 2020 to his bicycle and camera as well as his own personal garden.