Roses forum: Need Help With Pruning/ ReshapingRose Tree, Please.

Views: 196, Replies: 6 » Jump to the end

Sep 21, 2018 6:14 PM CST
I currently have a newly planted( this spring) Knockout Rose tree. We absolutely LOVE the tree, however I'm certain I am pruning/trimming it incorrectly. It had lost its rounded shape and is now lopsided and looks unkempt. I cant seem to find good I formation or help anywhere. It is blooming very well, and seems by all what I can tell to be very healthy. It's just starting to look unruly. Help!

I'm sorry for the bad picture,
but as you can see the branches seem to be sagging, it's spread open and lopsided. Can this be fixed? Grumbling

Thumb of 2018-09-22/Steensj2004/1ff7bc

Sep 21, 2018 6:17 PM CST
Here is how it looked originally, right after getting new beds. I fear I've really jacked it up....

Thumb of 2018-09-22/Steensj2004/a03da9

Name: Lola
Keeps Sheep Roses Cottage Gardener Garden Photography Birds Farmer
Sep 24, 2018 2:25 PM CST
I'm not sure I understand your question. I am very new to roses but I know they can put out a lot of growth in a short amount of time so that they can flower well. It will never be a perfect shaped ball because it will grow more on the parts that get more sun. After flowering you can snip off the old flower heads and in winter trim the bush to keep the shape you prefer. Your rose has been grown as a standard so you can look up 'how to trim a standard rose' and it should be able to show you where to cut back to. Sorry I can't be of further help but maybe now that your question has been revived someone will see it and be able to answer you properly. Lola.
Coastal Southern California (Zone 13a)
Sep 24, 2018 5:25 PM CST
Lola covered it pretty well. It's not the nature of roses (well, MOST plants) to grow as perfectly-shaped balls. If you cut off every bit of new growth to retain that shape, you aren't going to have much bloom.

There's something else though, I'm not sure what your climate is like, but I have heard from folks in mild-climate areas that Knock Out roses can become very very large. Even if you take the stated expected size "Height of 2' to 4' (60 to 120 cm). Width of 3' to 4' (90 to 120 cm)." That is a much, much larger mass than the baby plant you brought home.

In other words, I think it's just getting started!

I've honestly never seen a neatly-round tree rose. Most of them seem to "escape" eventually. This one, in front of an old Northern California home, is a particular favorite of mine -- I visit it when ever I have an opportunity:
Thumb of 2018-09-24/jerijen/e3bc23

Coastal Southern California (Zone 13a)
Sep 24, 2018 5:26 PM CST
OH! And it will also tend to grow toward the sun!
Name: Shyam
San Francisco, CA (Zone 10b)
Sep 24, 2018 6:03 PM CST
I don't know where you're located, or if it snows there during winter. However, if you will be winter pruning, prune as per Lola's suggestion, and follow the training methodology as mentioned in the following article:

Here are a couple of instructional videos on standard rose pruning, which I will be using as a guide for myself next year when I plant my standard roses:

Good luck!
[Last edited by Rose_Guy1127 - Sep 24, 2018 6:06 PM (+)]
Give a thumbs up | Quote | Post #1824017 (6)
Name: Carol
Alberta, Canada (Zone 3b)
Sep 30, 2018 4:55 PM CST
Wow, Jeri!!! That's an unbelievable tree rose!!!! I can't imagine ever having something like that in my yard!! Amazing and gorgeous!!!!! Drooling

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