Four Star Greenhouses
City: Carleton, Mich.
Website: PWFourStar.com
Environmentally controlled square footage: 1,306,800
Number of offshore facilities: 0
Percentage of production space under permanent environmentally controlled structure devoted to each crop (based on 2010 figures):
Plugs and propagation 60%
Ornamental bedding plants 40%
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Four Star Greenhouses