... the Dutch (in northern cities) turned to eating tulips - and everything else - in the desperate "hunger winter" of 1944; that's very different from "a common source of food (...) during world war 2".
(Tulips are obviously not an efficient food source; don't expect to see people eating tulips except in unplanned-for emergencies.)
(Tulips are obviously not an efficient food source; don't expect to see people eating tulips except in unplanned-for emergencies.)