Nut Trees produce fruit with a hard covering or shell, yet are also grown as shade trees, for wildlife and harvesting. Fast Growing Nut trees include oak trees that are planted primarily for wildlife food plots, black walnut trees and hazelnut shrubs are for planted for human consumption. Black Walnuts and Butternuts are commonly planted for timber plantations. Gobbler Sawtooth Oaks, Pin Oak and Sawtooth Oaks tree varieties are good choices for growing nut trees for wildlife and to attract and feed wild turkey.