did it have any greenhouses?
Yes
Briarcliff Farms
The farm had two groups of greenhouses; one, behind Walter Law's house and west of the Briarcliff Lodge, produced decorations for Briarcliff Farms, the Briarcliff Lodge and Law's and his workers' houses. 
what is briarcliff farms? It was a farm. where was it located? Briarcliff Manor, Westchester County, New York.
wiki:20075250
Briarcliff Farms [SEP] Greenhouses
Although Briarcliff Farms' primary operation was dairy, a secondary agricultural product was its American Beauty rose. The farm had two groups of greenhouses; one, behind Walter Law's house and west of the Briarcliff Lodge, produced decorations for Briarcliff Farms, the Briarcliff Lodge and Law's and his workers' houses. The other group, the Pierson commercial greenhouses, grew the American Beauty rose and rare carnations; it produced 22 varieties and about 2,500 blooms a day. The greenhouses, advanced for their time, had light steel frames and glass panes unique in their "almost unshadowed exposure to the light". The newer greenhouses, , held up to 40,000 plants apiece.