I live in the desert (Bullhead City, Az) and my new leaves on my orange are very small ---is this normal????
Orange Tree Leaves
Without knowing more about your orange -- is it in a pot or the ground, how long have you had it, how big is it, what kind of light does it have, what variety of orange is it -- I can't give you a very good answer. However, here is some general information on growing oranges: https://www.gardeningknowhow.com/edible/fruits/oranges/growing-an-orange-tree.htm