In 1985, McCrohan began cultivating White Squill bulbs gathered and selected from the region around the Mediterranean Sea by the late Dr. Howard Gentry, a former U.S.D.A. plant explorer and University of Arizona professor. McCrohan continues developing Urginea maritima (White Squill), as well as several other experimental cut flower and herb crops.
A Rutgers University graduate, McCrohan has worked as a full-time farmer and horticulturist for four decades and managed the Gentry Experimental Farm in Murrieta, Calif., from 1985 to 2006. McCrohan is also the former chairman of the City of Murrieta Planning Commission and a past member of the Murrieta/Temecula Resource Conservation District.
He has served the farm manager of Native Seed Search in Patagonia, Arizona, and is now proprieter of Shoppon's Run Farm in Northern New Jersey.