E.G. Waterhouse researched the origin of the camellia, its culture and nomenclature resulting in the camellia regaining popularity in Australia. His work brought him international acclaim and respect. He co-founded the Australian and New Zealand Camellia Research Society and wrote two books on camellias. He founded the well known Camellia Grove nursery at St Ives in 1939. He was a member of the board of the International Camellia Society for many years.