While farmers set up conditions for the development of plants, the seeds they help grow into plants determine conditions for the farmers. Modern plants not only have agronomic characteristics but also intellectual property rights, phytosanitary regulations, and classifications attached to them. Interacting with their seeds creates fields of property and power, situations of possibility and impossibility, in which farmers and breeders operate. The biosocial networks from which seeds emerge are animated by bureaucratic measures, property relations, and research and cultivation practices that I will explore in action. Seeds not only become what they are in multifarious networks of natural, cultural, and political agencies, but their emergence and coevolution with humans is ruptured through deregistration, persecution, confiscation, and destruction of proprietary seeds. This article will take the reader from the fields of farmers in Saskatchewan to seed breeders in Saskatoon and ultimately to public meetings organized by the Canadian Food Inspection Agency in Ottawa.