Do I Trim Back Plants In The Spring- Mine Look Dead

Question

Wonder if road salt has killed them?

Answer 1

Perennials that bloom in summer are usually cut back in spring. Spring-blooming perennials are usually trimmed if needed after they bloom.

If they are planted near the road and salt is used during the winter to melt snow, it can have a detrimental effect on plants.

This article should help:

https://www.gardeningknowhow.com/plant-problems/environmental/salt-damage-in-winter.htm