To ensure cross pollination the lords and ladies plant trap insects. Rotten smell attracts the flies, which falls inside the sheath. Female flowers pollinate them. They are then showered with pollen and released. Flies smelling the spike, of the lords and ladies plant land on the inside of the green sheath. Flies slide down as this has a slippery surface, downward-pointing hairs. All night the flies remain at the bottom of the trap. Crawling over the female flowers, first they pollinate them with pollen brought from other plants. The stigmas then wither and the stamens of the male flowers ripen and burst scattering pollen over the flies. Next morning, the slippery surface inside the another falls away, the downward-pointing hairs wither, and the flies escape.