The nursery/greenhouse industry is the fastest growing segment of U.S. agriculture. Consumer demand for excellent product quality requires luxury applications of water and agricultural chemicals. These cultural practices tend to yield significant volumes of runoff rich in nutrients and pesticides. A capture and recycle system at the Nursery/Floral Crops Research and Education Center at Texas A&M University was fitted with 12 subsurface flow (SSF) and 12 free-surface flow (FSF) wetland cells. Constructed wetland cells provided substantial reduction of runoff nutrient concentrations without increasing electrical conductivity, an indicator of salinity. Growth of
Iris pseudacorusL. and Canna generalisL.H. Bailey during spring growth was greater in the FSF wetland cells, while that of Colocasiasp. Fabr. was greater in the SSF wetland cells. Equisetum hyemaleL. grew equally well in both cell types. Direct reuse of nursery runoff reduced the number of Ilex vomitoriaAit. `Nana' reaching marketable size in 2.3-L containers. Interactions among irrigation water sources and container media types for growth indices occurred for Juniperus procumbens`Green Mound' and I. vomitoria`Nana', but not for Raphiolepis indicaL. `Carmelita'.