For generations, the legume family—soybeans, cowpeas, beans—has resisted the ancient agricultural art of grafting, not for lack of effort but for lack of a reliable way to hold two cut plants together in those first fragile days. Researchers from Nagoya, Kyoto, and Huazhong universities have now identified a small synthetic molecule, GPM1, that quietly coaxes plant cells to expand across a wound without disturbing the broader hormonal order of the plant. It is a narrow intervention with wide implications: a reminder that precision, not force, is often what living systems require.