We transplanted this climber rose bush that still blooms beautifully. As you...

Asked February 17, 2020, 9:53 AM EST

We transplanted this climber rose bush that still blooms beautifully. As you can see by the pictures it has disfigured the arbor I built. I am going to build a new arbor this spring. When can I cut this rosebush back and how much? Question number two when can I cut back the knockout rose bushes we have and how much? When can I cut back the butterfly bush and how much? Thank you so much for helping me out.

Howard County Maryland

1 Response

Here is a good link from New York Botanical Garden on pruning climbing roses
https://www.nybg.org/blogs/plant-talk/2012/02/tip-of-the-week/pruning-climbing-roses/

You can prune Knockout roses down to two feet tall in early spring. Also, remove any dead or crossing branches. It is a good maintenance practice to do this pruning annually. You will find additional information in this article. https://extension.umd.edu/hgic/topics/rose-rosenot-always-look-%E2%80%98knockout%E2%80%99-landscape-...

In general butterfly bush is pruned in the early spring with the onset of new growth. You can prune back to about a foot.
It should be noted that butterfly bush is invasive. See our website. You may want to take the opportunity to plant a native plant in its place. http://extension.umd.edu/hgic/topics/butterfly-bush

Marian