Introduced in 1993, the Aubrey Deane lima bean plant produces medium-sized, maroon-colored beans with splashes of white. As a matter of fact, lima beans in general are a very good source of the trace mineral manganese, which is an essential co-factor in a number of enzymes important in energy production and antioxidant defenses. In addition, these beans contain 39% of the daily food value for folate, for DNA synthesis and cell division.