Cornflower is a flowering perennial shrub native to North America and cultivated in Europe from the 1930s onwards. The shrub's bell-shaped white to red flowers give way to small, sweet berries that take on a dark blue hue. at maturity. The fruit is appreciated for its sweet flavor and its high nutritional value. Rich in vitamins and minerals, loaded with fiber, but lower in sugar than many other fruits, blueberries are widely consumed as a whole fruit as well as used in jams, juices, cereals, snacks and wine. .