The implications of freezing seeds to conserve genes statically and for the long term are complex and deserve further reflection to appreciate seed banking as an attempt to detach seeds from their life cycle. Here, I use a cryopolitical framework to explore this in the context of the activities of the International Board of Plant Genetic Resources (IBPGR) between 1973 and 1984. I suggest that the emergence of seed banks is a shift toward a cryopower mode of governance, where technoscientific intervention in the biology of seeds was presented as a means to manage the survival of seeds. The project of ex situ conservation is a socio-technical effort by international institutions such as IBPGR and a variety of institutions with seed repositories. In creating a coldscape, they sought to make genetic resources into frozen seeds that were stable and mobile, not only across space but, importantly, over time. Consequently, our interpretations of seed banks as sites of geopolitical significance in the controversies over access to seeds can be complemented by considering their biopolitical importance as interventions that extend the power of IBPGR and other institutions toward plant life, and the future. [seed banks, cryopolitics, crop genetic resources, history of science, conservation] Sara Peres is with the University of Southampton, Southampton, U.K. Sara's research applies STS, historical, and geographical approaches to understand the creation, accumulation, and circulation of living organisms as biological resources. She is currently a Research Fellow at the University of Southampton working on the Animal Research Nexus project.