"It happened during the period of gray days that followed the splendid colourfulness of my father's heroic era. These were long weeks of depression, heavy weeks without Sundays or holidays, under closed skies in an impoverished landscape. Father was then no more with us." 

(Cockroaches - Bruno Schulz)

The title 'Cockroaches' is implemented into the work as sunflower seeds turning into cockroaches, as the indication of something brilliant losing its glory, turning into something unappreciated or even loathed.