Elaeagnus umbellata species (Autumn Olive)
Because the Autumn Olive is considered a Noxious Weed it is prohibited to Ohio.
Juglans species (Walnuts, Butternut)
Due to Thousand Canker Disease, Walnut Twig Beetle, Geosmithia fungus, Walnuts are strictly prohibited to Ohio.
Ribes species (Black Currant)
Due to White Pine Blister Rust only these 7 varieties can be shipped into Ohio (Consort, Coronet, Crusader, Titania, Lowes Auslese, Polar, and Willoughby) which have been shown to be immune. All other varieties of Black Currants are prohibited to Ohio.