Reading Félix Guattari’s concept of ecology through feminist accounts of care and solidarity, and vice versa, in this article, we propose the concept of feminist technoecology as a speculative mode of thinking with borders. Rather than considering borders as lines on maps or primarily as physical arrangements, we argue that feminist technoecology allows for an understanding of borders as multispecies matters of care where cuts that matter are enacted, and precisely therefore calls for transversal solidarity and care that goes beyond the human. Turning to two stories revolving around the naturalisation of borders, bodies, and territories, we demonstrate that a technoecological take on borders not only fundamentally questions an a-priori distinction between technology, ecology, geology, politics, bodies, and a more-than-human world, but also foregrounds different modes of attentiveness with regard to questions of care, nativity, and mattering.