This is a designing services research for social innovation and sustainability and aims to understand and strengthen the collective initiatives produced from six community gardens. A literature review based on social design and innovation, collaborative design practices and service design was used as a methodology, and field activities such as interviews, participant observation and research journals were used as methodology. Two service design exercises were developed: the first part of an expert design process and a second from a codesign process in a community garden using the Dragon Dreaming method. The results were favorable for the development of collaborative processes within the garden initiatives that are already being supported collectively. The codesign process gave rise to two projects that can be developed in the future and also contributed to generate more meetings and collective processes within the gardens. The time was one of the limiting factors so that the practice of codesign was not developed in this research. The study proved that collaborative design processes are the guiding thread within collective practices and that codesign is the practice that can sustain processes for community garden activities.