perennial cornflower

What Are Cornflowers Good For? Cornflower is an herb. The dried flowers are used to make medicine. People take cornflower tea to treat fever, constipation, water retention, and chest congestion. They also take it as a tonic, bitter, and liver and gallbladder stimulant. What do cornflowers symbolize? The Cornflower (Centaurea cyanis) is a native annual/