The Environmental Horticulture Program has achieved over 44,000 registration through research conducted throughout the country. Summaries of past projects can be found in the Summary Archives at the National IR-4 website. More recent Project Summaries of newly completed research can also be found at the National IR-4 website. Periodically, the National Coordinator of the Environmental Horticulture Program publishes Crop Vignettes summaries, which describe IR-4 research that has been conducted on specific ornamental crops.