[1] Maud Grieve became her friend and she had done leading work in growing herbs during the Great War when the UK's traditional sources were difficult to access.
Grieve had been the president of The British Guild of Herb Growers and in time she would publish A Modern Herbal in 1931.
[2][3] Maud Grieve's older husband's health became a concern and she decided to move away from herb production and training.
Hewer had been inspired by Grieve and by the work of the gardening writer Eleanour Sinclair Rohde.
[1] The sale volumes increased during the war and she published her book on herbology in 1941 titled Practical Herb Growing.