Located directly behind the Rodman Hall Arts Centre.

History
The year was 1862, the location was the estate of Thomas Rodman Merritt and the man in charge was Samuel Richardson, a landscape designer from England. The result was a garden that at its peak included exotic trees from Europe, China and the Carolinas, perennial borders and lush formal gardens with neatly trimmed hedges.

Description
Today the remnants of Richardson’s work have been woven into the fabric of what now is the Walker Arboretum. , the Walker Arboretum boasts plants and trees not normally grown in this area. The hillside location is a distinct micro climate because of its slope, shelter and proximity to Twelve Mile Creek. The establishment of the arboretum began in 1985 through the donations of Walker Industries and the efforts of the John Howard Society and was completed in 1988. The garden includes over 200 plants and shrubs, 15 types of magnolias, a cedar from North Africa and one of the largest Empress trees in Canada.