Imagine a botanical garden that reclaims your wastewater while providing year-round community green-space. Greenhouse-based wastewater treatment systems can provide clean water, soil amendments and seedlings for urban agriculture, educational opportunities, and a therapeutic space to promote wellbeing. Greenhouse-based wastewater treatment facilities are already being successfully implemented around the world. With community support, we can design and build them in and for Guelph. We are a team of engineers, scientists, a horticultural therapist, and a water activist, looking for support to establish a not-for-profit company and, as a first step, build a research facility at the Guelph Wastewater Treatment Plant.