Answer: It's true that corkscrew willow is hardy in some areas around Battle Creek, but most of the county is in USDA Zone 4B, which is marginal territory for the tree. They are truly hardy in Zones 5-8, and can thrive in colder areas when planted in a sheltered place, out of drying winter winds and scorching winter sun. They grow well next to buildings here in Burlington, Vermont; we're in Zone 4B, too, but I've never seen one larger than shrub size. Yours is likely to keep dying back unless you move it to a more protected spot. Or, if you want another option, Ulmus glabra 'Camperdownii' (Camperdown Elm) is a hardier tree with contorted branches that makes a great specimen. If you want other suggestions, please let us know. Good luck!
Q&A Library Searching Tips