Do you see why this picture of poppy seeds is so pretty? It is all colours of greenish-blue. The background is soft green and the poppy seeds are aqua-blue. However, to balance the blue you need the complementary colour of blue which is yellow.
Poppies usually get the most photographic attention when they're blooming. However, the bulbous poppy pods that grow after the bright flower petals fall off can also be quite striking, as if the plant has sprouted a flattop haircut and a chubby face.