Graft/ɡræft/ Definition 1 of 6Pro Tip 1/2Plant Combination Grafting in horticulture creates a new plant by combining parts from two plants. The gardener's graft made a cherry-plum hybrid. Pro Tip 2/2Growth Technique Grafting is a precise technique that requires skill and knowledge to connect plant tissues. She studied how to graft delicate vines before trying it.