Silvery Bismarck Palm Tree (Bismarckia nobilis) is a dramatic addition to your garden. It can grow in Nevada, Texas, Arkansas, and Alabama because it is native to Madagascar and can withstand temperatures as low as 15°F. However, this palm is not for you unless you have an enormous yard. Plants may reach a height of 50-60 feet and a spread of up to 20 feet. While the trunk is still small, young trees can grow up to 20 feet in width. So that the silver leaves of the Bismarck palm may glitter, place it near dark-leaved evergreens. Zones 8b-11 are suitable for hardiness.