Some plants form roots much more easily than others. Rooting hormone, in gel form, is used to stimulate root growth and increase the overall success rate when taking cuttings. Rooting gel is advisable for any cuttings as it promotes healthy, thriving roots. Simply dip the cut end of the cutting into the rooting gel before sticking it into a glue plug or starter pellet. Rooting hormone, in gel and powder form, is proven to increase overall success rate when taking cuttings.