Pecan trees produce large, sweet nuts encased in a hard shell. They are cultivated for their nuts, used in cooking, baking, and snacking. Inputs Hardiness zone 51 Hardiness zone 61 Hardiness zone 71 Hardiness zone 81 Hardiness zone 91 Outputs Human food Type Carya spp. - Hickory Footnotes Carya illinoinensis | Plants for a Future ↩ ↩2 ↩3 ↩4 ↩5