Source: U.S. Department of Agriculture (Agricultural Statistics Service)
The 2009 Census of Horticulture counted 21,585 operations in the United States with sales of $10,000 or more in horticultural specialty crops, a decrease of 2,173 operations since the 1998 Census of Horticulture. Sales of horticultural crops only increased by 10 percent over this period, compared to a 60 percent increase for all crop commodities.
Categories where sales increased more than average include food crops grown under cover, bedding plants, nursery stock and propagative materials. Categories with a lower than average change in sales include sod, potted flowering plants, cut Christmas trees, dried bulbs, cut flowers and cut cultivated greens.