Edmund Snodgrass started the first green roof nursery in North America and has collaborated on green roof research with colleges and universities. He is co-owner and president of Emory Knoll Farms Inc. Ed speaks and lectures widely on green roofs and has presented in England, Australia, New Zealand, Germany, Canada and the US. Ed in 2009 was the recipient of the Spencer P. Ellis award from the Maryland Chapter of ASLA and is the 2011 recipient of the G.B. Gunlogson Award from the American Horticultural Society.