Each year since 2016, Green Roofs for Healthy Cities has conducted a survey of its members in the green wall category in order to collect data on the growth and composition of the green wall industry across north America. This resource allows GRHC to speak confidently about the shape and state of the North American green wall market, and provides support for policy outreach efforts in municipalities across the United States and Canada. The survey report also provides valuable market intelligence on green roof installation hot-spots, and tracks the size, source, and variety of green roofs that have been installed.