Can I Grow American Sycamore In Zone 4

Question

What would be a better choice , sycamore or walnut ?

Answer 1

You can, but just barely. They beat out the Walnut in hardiness, just barely, as well.

https://www.gardeningknowhow.com/ornamental/trees/sycamore/sycamore-tree-care.htm

This article will help you to find something that will grow well in your zone:

https://www.gardeningknowhow.com/garden-how-to/gardening-by-zone/zone-4/growing-trees-in-zone-4.htm