Mary-Liz Campbell has undergraduate and graduate degrees from the University of Toronto and McGill University. She has a design degree from Parson's School of Design. Mary-Liz earned a Certificate in Landscape Design from the New York Botanical Gardens and has attained national certification from the Association of Professional Landscape Designers (APLD).
Mary-Liz formed Mary-Liz Campbell Landscape Design, Inc. in 2001.
She gardens with passion, and travels extensively, both serving as inspiration for her landscapes and garden travel writing.