Cornflower, or knapweed, is the national flower of Germany, according to National Flowers. The blue cornflower is often a staple in German gardens and is available as both a perennial and as an annual.
Knapweed is a tougher variety of cornflower that often paints meadows and fields a bright blue. This flower is often kept away from gardens due to its tendency to dominate. Herbalists make a healing eye lotion out of a decoction of the cornflower's leaves.
Germany's national tree is the oak tree, and the national bird is the eagle. Germany's national motto is "Einigkeit und Recht und Freheit," meaning "Unity and Justice and Freedom."