Understock

From BonsaiWIKI

Understock refers to the material to which a scion is grafted. The understock provides the root system, or even the majority of the finished plant. For the purposes of bonsai the scion could be intended to become the entire above-ground portion of the plant, or only a branch

Grafting Terms
Types: Thread graft | Approach graft
Tools & Supplies: Grafting knife | Grafting wax | Poly bag | Syringe | Peat moss
Terms: Root stock | Scion | Understock | Graft union | Necrosis