The green industry comprises the production and marketing of woody ornamentals, greenhouse, and turfgrass-related products, and landscape and horticultural services. The industry is market oriented with prospects for future growth. Many state trade organizations have become interested in better measurement of the industry's economic contribution. The contribution of major industry sectors to the Louisiana economy are quantified with a state input-output model. Also presented are study results that are mainly based on readily available data sources. Results suggest that the state industry made a strong contribution to economic activity comparable in size to that of other major agricultural commodities.