My ivy grows on a trellis. It was really cold this year. The leaves look all brown and dead. It has done well for the last 4 years. Don't know what to do.
The past winter was unusually hard, and you're not alone in finding your plants dead or severly damaged. Ivies are pretty tough, though. The most you can do is to cut back the dead parts, and see how the plants regrow. This article might have some ideas you can use: https://www.gardeningknowhow.com/ornamental/groundcover/english-ivy/english-ivy-plant-care.htm