Scion Posted on November 8, 2022August 1, 2023 by Tex Norwood The portion of a plant or cultivar that is grafted onto a separate rootstock, consisting of a piece of shoot with dormant buds that will produce the stem and branches. Related Articles: Grafting and Budding OverviewPlumeria – Cutting, Rooted or GraftedHow to Do Budding in PlantsGlossary: GraftGlossary: Bud union