This project centered Indigenous history, culture, and sovereignty while also teaching about scientific principles connected to plants, agriculture, and gardening--key ideas the authors and professors hoped their preservice teachers (PSTs) would be able to use with the young learners in their future classrooms. The purpose of this work is for PSTs to broaden their often-narrow definitions of science and social studies to be more inclusive of different ways of knowing and to invite diverse perspectives and experiences into the conversation around learning. The authors plan to continue to improve and expand on this STEMSS project each semester as an example for teachers to harness the power of collaboration and interdisciplinary work and provide new perspectives about each discipline by centering Indigenous ways of knowing, history, culture, and sovereignty.