Studies of the North American native wetland plant Phragmites australis (Cav.) Trin. ex Steud. subsp. americanus Saltonst., P.M. Peterson & Soreng have been hindered by chlorosistissue yellowing due to reduced chlorophyll productionwhile grown in controlled conditions, resulting in reduced growth. This study tested the effects of reduced iron [Fe(II)] and magnesium [Mg(II)], both important nutrients for chlorophyll production, on photosynthetic performance and growth of North American Phragmites, a plant of interest for wetland restoration and management. Plants were exposed to five treatments in a 13-week greenhouse experiment. Four of the treatments consisted of a factorial arrangement of Fe(II) and Mg(II) treatments (0.