A new and distinct cultivar of walnut tree denominated ‘Solano’ is described. This new cultivar, ‘Solano’, comes into bearing young, with an excellent yield. ‘Solano’ forms jumbo-sized walnuts that possess light-colored kernels with little size variation in a given harvest. ‘Solano’ bears fruit terminally and laterally and yields a crop that can be harvested approximately 2 weeks before ‘Chandler’ (U.S. Plant Pat. No. 4,388). ‘Solano’ is also protandrous, bearing male flowers before female flowers.
