Early childhood education provides an important arena for fostering valuable habits and practices for sustainability. This paper contributes to understanding the educator's role within early childhood environmental education in foraging and gardening practices. What pedagogical approaches does the teacher provide to foster the children's participation, engagement, and learning in such activities? To investigate this question, we used a qualitative approach, including video and on-site interviews with kindergarten teachers during foraging or gardening activities. We also analyzed semi-structural interviews and collected field notes for in-depth views and reflections from the teachers. The qualitative data were analyzed using reflective thematic analysis. The data analysis suggests three themes that exemplify hallmarks of the teacher's role: (1) facilitating adventurous experience, (2) child-centered communication, and (3) building collective knowledge and skills. The implications for the future are discussed with respect to the kindergarten teacher's pivotal function in supporting children as eco-citizens for sustainability. The data show that the kindergarten teachers' over-arching role is to take leadership of fostering engagement and learning for everyone involved.