Playgroups are a unique form of early childhood provision involving parents and their children attending together. Parents' attendance at playgroups provides opportunities for involvement in play. However, little is known about parents' practices of co-play in playgroups and the potential for these practices to enhance children's play experiences in early childhood. Drawing on practice architectures theory, this paper identifies parents' practices of co-play in a community playgroup, and the enablers and constraints on those practices. Data were collected through ethnographic methods, which included participant observation and informal individual interviews. The findings show that parents' practices of co-play consider the child's needs and interests in ways that support development and enhance children's play in the community playgroup. This research contributes new knowledge about the range of co-play practices engaged in by parents with children in community playgroups.