Walnut trees are prized for their nuts, their beautiful appearance, and lumber. They can grow up to 75′ tall and they like full sun and a range of soil conditions. They produce a toxin that discourages the growth of certain species nearby, including blueberries, rhododendron, and chestnuts. They are a great source of food for wildlife and a lovely shade tree. Purchase size: small bareroot seedling, about 24-36″ tall.