Dallas Johnson Greenhouses

City: Council Bluffs, Iowa

Website: DJGreenhouses.com

Environmentally controlled square footage: 2,700,000

Number of offshore facilities: 0

Percentage of production space under permanent environmentally controlled structure devoted to each crop (based on 2010 figures):
Ornamental bedding plants 70%
Container perennials 20%
Flowering potted plants 5%
Plugs and propagation 5%