&Harry Ide was born in Alamo, CA in 1912. Early in 1942, Harry and his wife (photo right) were among the 120,000 Japanese Americans who were relocated and held at internment camps. Prior to his departure, Ide was stripped of his American citizenship and forced to sell his belongings. After the war, in 1946, the Ides returned to Contra Costa County. It was here that he started his new venture in early August of 1950, Harry’s Nursery. When Ide retired in 1982, he leased his business to Jiro Nishimoto who ran the business successfully for 30 years.

Jiro has now retired and enjoys fishing and relaxing. The gift shop is now aptly named "Harry's House" to honor the founder. The Ide's lived in the house during the early years of the nursery.

In March 2007 Garth Jacober took over Harry's Nursery and renamed it Mt. Diablo Nursery & Garden.