Plagron Start Up Plagron is Dutch Company that produces excellent substrates and fine nutrients to use alongside. Additives like Green Sensation and Sugar Royal are top performers leaving growers with increased quality and yield. Plagron Start-Up is a complete one part feed for young rooted cuttings and young plants giving them a solid foundation to build upon. Start Up contains a root stimulator, growth hormones coupled with vitality boosters and nutrients. When preparing your nutrient solution, be careful not mix them together in their concentrated form. Add each part of your nutrient schedule to your tank separately, mixing thoroughly before adding the next component to the mix. Plagron Start Up feed rate – 7ml /Litre in Early Growth.