A thick layer of mulch around perennials can help them survive winter by insulating the roots against cold temperatures
https://medium.com/@percanpobe/finding-the-right-stone-yard-for-your-mulching-needs-in-lubbock-994387397187?source=your_stories_page--------------------------------------------
A thick layer of mulch around perennials can help them survive winter by insulating the roots against cold temperatures and harsh weather conditions.