Olive Mary Edmundson (née Harrisson) (1881 - 1972) was a British horticulturalist who was denied a scholarship at the Royal Horticultural Society Garden in 1898. Her parents were Henry and Louis Ann Harrisson. Harrisson attended Swanley Horticultural College. She was awarded the highest number of marks in the Royal Horticultural Society Certificate in Practical Horticulture. The prize was to work in the Royal Horticultural Society garden in Chiswick, £5,000 and a scholarship. Her success was rejected by the Royal Horticultural Society, who only accepted men at the time. This was despite women making up half of the top candidates. Harrisson was supported by , then secretary of the Royal Horticultural Society. She was presented with a medal to recognise her efforts, which she kept throughout