 While the couple lived in London, Florence acquired a keen interest in art and bought numerous works by artists of the time, including William Orpen, William Rothenstein, Walter Sickert, Philip Wilson Steer, Camille Pissarro, Claude Monet and Alfred Sisley.She presented many of these works to the Johannesburg Art Gallery, which she actively helped to establish.On a visit to South Africa in 1905, she commissioned Rudolf Marloth to undertake his Flora of South Africa, a mammoth work published in 6 volumes between 1913 and 1932.