Attempts to cultivate this at Philadelphia have proved futile. It lives through some mild winters, but dies under the severer ones. Some grafted on the black walnut did better, but finally succumbed to the severe climate. In its own country attention is being turned to its merits. In the country between Galt and Sacramento, farmers and others are planting a great many California walnuts, which make much the best shade trees. They are a nut-bearing tree, and the wood is valuable for fuel as well as for various manufacturing purposes. The walnuts grow finely in this section, and trees bear in three or four years.