Winterizing Double knockout roses in nebraska – zone 5a
First of all, I know nothing about roses. I saw beautiful full round knockout roses in the area so I bought planted about 10 bushes this spring. I cut them back just after planting because they were spindly looking. They grew fine throughout the summer, although they are still not really the shape I would like - I want more of a round big bush they are more tall thin at the bottom. It has grown cold in Nebraska and there have been mornings with frost on my car windshield. I really don't know what exactly to do with my bushes for winter, as everything I read on the internet just confuses me more. Can I cut them down now and, if so, how short can I cut them? If not now, when should I cut them back? Do I need to cover them for winter and, if so, what is the cheapest easiest way to do this? Any info you could provide would be helpful!!! Thanks!
Certified GKH Gardening Expert
Here is a link to an article that you should find very helpful for all of your questions. If you have more questions after reading the article, please feel free to ask them here as well. The Knockout roses winter care is really no different than other rosebushes. Here is the link: https://www.gardeningknowhow.com/ornamental/flowers/roses/roses-winter-care.htm