Q.ground cover
I’m looking for ground cover that can withstand freezing temp.
Sun, shade, dry or wet area? These are all important things to know when choosing any plant. If the area gets sun, a creeping (horizontal) juniper, pussytoes, sedum and creeping thyme are nice. For shade, consider ferns, solomon's seal, bearberry and epimedium. There are many, many more! Here is a website to give you ideas but check nurseries near where you live. Buying local in the case of plants means you are getting a plant accustomed to your weather conditions. https://www.bluestoneperennials.com/groundcovers.html?ext_title=All%20Ground%20Covers