These amazing flowers normally start to bloom in the midsummer and continue till October. Surprisingly sunflower stems were used to fill life jackets. Floating sunflower rafts have been used to clean up water contamination from the Chernobyl disaster. The roots of the sunflowers remove up to 90% radioactivity by drawing the contaminants out of the water. It’s wonderful to know that these beautiful flowers may not only bring a joy for the eyes but also be so much useful!