Which statement best describes US greenhouse involvement in floriculture?

• A. The US relies exclusively on greenhouse production
• B. The US relies mainly on outdoor field production
• C. The US relies on greenhouse production, with some field production
• D. The US relies on neither greenhouse nor field production

Answer: (C)

The main idea here is the balance between controlled-environment greenhouse farming and outdoor field growing in U.S. floriculture. Greenhouses provide a controlled climate, protection from pests, and the ability to produce many ornamentals year-round with consistent quality. This makes greenhouse production the primary method for many high-value flowers and cut flowers in the United States. At the same time, not every crop or region relies exclusively on greenhouses; some crops are still grown in fields, especially where outdoor conditions are favorable or where cost considerations favor field production. So the best description is that the U.S. relies on greenhouse production, with some field production.