Whip and tongue grafting is a common and highly effective propagation technique used for plum trees, especially when joining young rootstock and scion wood of similar diameter. This method involves making matching slanted cuts on both the rootstock and scion, followed by an additional “tongue” cut on each piece. The interlocking tongues help secure the union tightly, increasing the contact area of the cambium layers and improving graft success rates. This grafting technique is typically performed during late winter to early spring when the trees are still dormant. Once properly aligned and secured with grafting tape, the union heals over time, allowing the scion to grow as part of the rootstock. Whip and tongue grafting is favored for its strong structural connection and high survival rate, making it ideal for propagating high-quality plum varieties.