Butternut trees produce sweet, oily nuts encased in a green husk. They are valued for their nuts and use in woodworking. Inputs Hardiness zone 31 Hardiness zone 41 Hardiness zone 51 Hardiness zone 61 Hardiness zone 71 Outputs Human food2 Type Tree Deciduous Juglans spp. - Walnut Footnotes Juglans cinerea | Plants for a Future ↩ ↩2 ↩3 ↩4 ↩5 Gaia’s Garden - A Guide to Home-Scale Permaculture, 2nd Edition Table 10-1 ↩