It’s the tub of bright red geraniums at the heart of the picture that startles. How did anyone have time (or energy) to water these bright, hopeful flowers amid the chaos of a field hospital in early 1915? ‘Tents with Stores and Flower Tub’ is one of ten paintings by Victor Tardieu in the Florence Nightingale Museum’s latest exhibition, dedicated to the pioneering work of the first world war nurses.