Changes in the standing crop of Vaccinium corymbosum shrubs were documented over 10 y at six sites throughout eastern North America. Populations in Florida, North Carolina, New Jersey and Nova Scotia showed few significant changes in standing crops over the 10 y of observation. The Ontario population had a significant decrease in standing crop whereas the Maine population increased significantly. Larger shrubs grew proportionately less at the New Jersey site but proportionately more at the Florida site. Seedling recruitment and plant mortality were very low at all sites.