Growing lemons and oranges in Nebraska? Impossible, would be the first word most people would think of, but not Russell Finch. He bills himself as the largest citrus grower in all of Nebraska. Besides citrus he also grows pears, avocados, figs, roses, yucca, agave, hibiscus, and hundreds of other types of flowers, fruits, vegetables, trees and plants. His secret? A home-built “underground” greenhouse.