What is a modern mentorship, how do you make it work, and what does gardening have to do with it? Let us take you on a tour of the growing garden of our own modern mentorship, showing how we as a medical writer (Lillian Sandø; mentor) and a clinical operations lead for devices, platforms, automation, and data analytics (Bjarke Stokholm Stærkind; mentee) can learn from each other across different functional business areas. Based on our experiences, we describe the structure and some tools that we think are key to making a formal mentorship work, helping both parties develop in a continuous cycle of growth.