Cassell's dictionary of practical gardening; an illustrated encyclopædia of practical horticulture for all classes - Wright, Walter P. (Walter Page), 1864 -1940 (Cassell and company, limited, 1902)

The century supplement to the dictionary of gardening, a practical and scientific encyclopaedia of horticulture for gardeners and botanists - Nicholson, George, 1847 -1908 (Geo. T. King, 1901)

The Gardeners' chronicle :a weekly illustrated journal of horticulture and allied subjects ([Gardeners Chronicle], 1888)