This article reports how Swedish teachers' aims and practices were modified by an ecosystem services development project that introduced insect hotels, bird boxes and planting to ten preschool yards. Teachers' understanding of ecosystem services, human--nature relationships and the impact of these on nature connectedness showed that their conceptualisations of human--nature relationships were shifting and complex, reflecting overlapping ideas about what schoolyard ecosystem services might mean to/for young children and how children's connection with nature might best be supported. The findings suggest creating pockets of urban nature in schoolyards is a useful strategy to unpack some of this complexity through direct experience of ecosystems encouraging interest in, concern for and understanding of our mutuality with nature.