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Can I Prune a Knockout Rose Now?

Posted by roberta_nc Zone 7 NC (My Page) on
Fri, Mar 6, 09 at 16:35

Doesn't this springlike weather just make you want to get your hands dirty, as Rebecca Kolls says?

I have a double knockout rose that I'd like to prune to make it more bushy and less gangly. Can I do that now? I'm in Cary.


Follow-Up Postings:

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RE: Can I Prune a Knockout Rose Now?

We usually prune when the forsythia is blooming. It is blooming in my area now so I plan to prune my roses soon.

Gail


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RE: Can I Prune a Knockout Rose Now?

I pruned my knock out and other shrub roses back hard this morning. Seemed like the right thing to do, though mine take pruning well any time of year I (or the deer) get around to it.

Has anyone seen the new yellow KO, '(Rad)sunny'?


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RE: Can I Prune a Knockout Rose Now?

Haven't seen it with my own eyes, but our girl Adele out at BB was telling me yesterday that it is really pretty. Can't wait to check it out.


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RE: Can I Prune a Knockout Rose Now?

I've got a yellow one. I bought it in Delaware last summer. I stopped at a nursery on my way back home. I made a beeline for them. They have a slight fragrance, but nothing to get too worked up over.

It starts out really yellow and turns a creamy yellow after a couple days.


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RE: Can I Prune a Knockout Rose Now?

  • Posted by jimtnc 7b Raleigh tttf (My Page) on
    Tue, Mar 10, 09 at 8:46

How far back do you prune them, and I also heard some usually leave 2-3 canes alone. What's your thinking? I have a regular (can't remember name) yellow rose and a knock-out that have several canes about 2-3' right now.


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RE: Can I Prune a Knockout Rose Now?

I'm probably not the one to advise on how best to prune roses. My strategy was dictated primarily by the fact that we need to get over them with a ladder to clean the gutters this spring. That said, I cut the knock out back from >5 feet to ~3 feet, all canes included, but the oldest ones that were getting woody got pruned back farther to open up the shrub. I don't think I pruned it anywhere near that hard the first year or two, though.


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RE: Can I Prune a Knockout Rose Now?

  • Posted by jimtnc 7b Raleigh tttf (My Page) on
    Wed, Mar 11, 09 at 5:51

I just read you can prune a rose shrub (Tea, etc) when the forsythia is blooming (now) by one-third to one-half down to an outward facing bud. I guess that could go for the knock-outs too.


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RE: Can I Prune a Knockout Rose Now?

Leaving one or two canes is how you would prune a hybrid tea rose. Knockouts are shrub roses, so do not do that. Take out dead wood and then trim about 1/4 off the top.

Here's a great intro video from Paul Zimmerman of Ashdown:

http://www.youtube.com/watch?v=7xoof42rrLk&feature=related

P.S. yes, mid-March is a good time to prune here.


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