These are Knock Out Roses - planted 2 years ago - had great blooms on them in May/early June, but this particular cane has light green branches, and looks a bit sad compared to the rest of the plant. I cut it back in early February. I live in NW Indiana.
It could be stem cankers.
https://www.gardeningknowhow.com/ornamental/flowers/roses/rose-canker-fungus.htm
I trimmed my knockouts back in September of 2019 pretty low down because they were nothing but twigs. I also give them Epsom salts every February. I recently added several bags of Rose dirt to the bed thinking maybe that would help. All of my bushes are over 5 years old.
These articles should help:
https://www.gardeningknowhow.com/ornamental/flowers/knockout-roses/knockout-roses-turning-brown.htm
https://www.gardeningknowhow.com/ornamental/flowers/roses/brown-edges-on-rose-leaves.htm
the plant is about 3 years old. a small bush has grown about 2 feet from the original bush. Is this a sucker? can I dig it up and transplant it?
Knock Out roses are grafted so anything below the graft on the main stem should be removed. It's possible a shoot came up from the root a short distance from the plant. If so, you would be growing the rootstock if you keep it, not the desirable cultivar, or top growth.
My daughter had knockout roses planted last spring. They did fine last summer. They were never pruned back in the fall or spring and they're quite large.They are not blooming at all and look terrible. We did have a late frost this spring. She is located in Central Ohio. Would it be ok to just cut them back now and hope they come back next year? Thanks, Marsha
Not in the middle of the summer or a heat wave. Check your rose bush from time to time in late winter/early spring and, when you start to see new shoots growing from the canes on your rose bush, that is a good sign that you can prune. Knockoutroses.com says that a Knockout Rose pruned down to 1' high in early spring will grow to 3' by the end of the growing season. That is probably a general estimate; it may be less the further north one goes as the growing season will typically be longer in the south.
I bought my 93 yr old mom a knockout rose. During the hot dry summer she noticed insects on the leaves, and sprayed it with bug spray. When I was there she pointed out that the rose wasn't looking well and told me what she had done with the bug spray. I removed most of the dead leaves and sprayed the bush with water to remove any residue. Should I cut it back to remove any damage done, or leave it alone to hopefully recover.
I would ask the manufacturer of the insecticide for their input. There is usually an 800 too free number.
https://www.gardeningknowhow.com/plant-problems/environmental/herbicide-plant-damage.htm
I bought this pot of knockout roses last year and planted it in my front yard. I am getting a very good number of flowers. However, the roses have always been blooming like in the pictures, the petals are wide apart and are not held together. The plant itself seemed to like the soil and location as it grew twice in size with many leaves and new stems. I am quite new to gardening and would appreciate any help to fix the plant. The plant food I use commonly for all my flowers is 10-52-10.
This is common for single Knockouts. Doubles Knockouts are much more full, and what most people think of when they think of Knockout Roses.
I do notice what may be a bacterial issue popping up. Make sure to allow the soil to dry out a little between waterings. It is essential for the first few inches of soil to fluctuate between wet and dry to keep the beneficial microbes around, while keeping harmful bacteria away.
These articles will help:
https://www.gardeningknowhow.com/special/organic/biofungicide-information.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/what-are-microbes-in-soil.htm
https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
https://www.gardeningknowhow.com/ornamental/flowers/knockout-roses/care-knockout-roses.htm
https://www.gardeningknowhow.com/ornamental/flowers/knockout-roses/spindly-knockout-roses.htm
https://www.gardeningknowhow.com/ornamental/flowers/knockout-roses/knockout-rose-diseases.htm
I bought a pot of knock-out roses last year and planted in my front yard. I get a decent number of flowers, but they are all bad. The petals are already separated by the time they bloom and stay that way until they are knocked out. I have only tried 10-52-10 flower food for all my flowering plants. As you can probably tell, I am quite new to gerdening and would appreciate how to solve this problem. The plant itself seems to do well and like the location as it’s grown to twice it’s size since we planted it. But the flowers before and after planting have always been bad like this.
Sorry for the typo. Don’t think I can edit the question now. I obviously meant ‘Help’ with my knockout roses.