Several nut trees thrive in the southern regions of the United States, and these trees serve as both beautiful hardwoods and wonderful habitats for birds and wildlife. Pecan trees are native to the southern United States and are well-adapted to the region's hot and humid conditions—that's the reason pecan pie is such a Southern favorite! Pecans produce delicious, buttery nuts and can be grown in states such as Texas, Georgia, and Louisiana. Almond trees can be successfully grown in parts of the southern states with mild winters and hot summers, such as California, Texas, and parts of Florida. Black walnuts also thrive in the south and offer beautiful branching.