The moorland clouded yellow lives near peat bogs, where the bog bilberry grows, its host plant. It deposits its eggs onto its leaves, which also serve to feed the caterpillar. It is as a caterpillar that the moorland clouded yellow spends its winter, before turning into a chrysalis in the spring and being born into this beautiful yellow butterfly. In June and July, the adult butterfly gathers pollen in the surrounding wetlands, fluttering from flower to flower.