check to see if there is a Uline near you, if not Grainger but you have to buy them in bulk. 10"x10"x36" or 48" depending on the total height of the plant with pot. If they are well rooted you can also remove the pot and bag the rootball and tape it really tight to hold it together. We use a different box supplier near us, in Orlando, Just because they are local. Let me know, if you need help. And please put me down for one or 2, if you decide to ship.