20 Neem Plant Seed (Azadirachta Indica)fast-growing-leaves,fruits,seeds Are Edible Commonly called divine tree, the neem tree (Azadirachta indica) is sacred in its native India, Bangladesh and Pakistan. These fast-growing shade trees can survive drought and grow well in poor soil. And, the leaves, fruit and seeds are edible. Neem trees grow in U.S. Department of Agriculture plant hardiness zones 10 through 12. The trees commonly grow 50 to 75 feet tall and can live for 200 years. The simplest way to propagate neem trees is by seed, but you can also root shoot and root cuttings. Locals used the fresh bark to make a drink against malaria. Neem soap is great for treating athlete's foot. Vedic people chew the fresh seeds to improve gum health, keep teeth in their sockets, and improve the breath. Neem seed oil is a strong insecticide that can be used at low concentration in the greenhouse to kill white fly and spider mites.