Washington State University's pioneering programs in organic and sustainable agriculture received a $5 million donation on Friday.

The gift is from alumni and natural foods pioneers Chuck and Louanna Eggert and their family to expand the WSU Organic Farm from four acres to nearly 30 acres. That will give WSU the largest organic teaching farm on a university campus in the United States.

The Eggerts founded Pacific Natural Foods in 1987.

Washington State established the nation's first organic farming major in 2006.