Sergio is a very uniform three-way cross bred by KWS. Yield and earliness have been consistent across England, Wales, Northern Ireland and Scandinavia over many seasons. It performed particularly well in the very challenging seasons of 2015 where its impressive vigour and stability gave it a strong advantage. This Trait has resulted in its continued development in more marginal maize growing areas. Sergio showed further adaptability with good performance in the heat and dry of summer 2018 and early 2020.  It combines very high starch content with good cell wall digestibility to produce very high energy silage.