Double Knock Out® Rose Shrub
Rosa 'Radtko'
One of the most popular rose varieties, blooming consistently summer through fall
More resistant to pests, black spot, rust, and mildew than any other variety
Improved variety will even grow in the shade, giving you more areas to plant
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Why Double Knock Out® Roses?
Boasting one of the longest blooming periods available, from early summer to late fall, the Double Knock Out® Rose gives you all the amazing characteristics of the original Knock Out® Rose - just with more petals and even better disease resistance.
Even better? Not only is this cultivar more resistant to black spot, rust, and mildew, but it's also more resistant to insects. That means the Double Knock Out® is virtually maintenance-free, especially since it grows thickly without pruning. Plus, it thrives in containers or in the ground.
About Knock Out® Roses: First introduced in 2000, the “Knock Out” family of roses has revolutionized the rose industry and remains the most prolific flowering shrub ever introduced. Each of the varieties in the brand are disease resistant, require minimal maintenance, and produce continuous blooms that last from spring to fall.
Why Fast-Growing-Trees.com is Better
With plenty of blooms to spare, you'll enjoy fresh cut roses in your home from spring until fall. And depending on your soil conditions, your blooms can range from dark to light red, offering even more versatility. And we prune your Knock Out® Roses before we ship them to give you an explosion of growth. Because of our hard work at the nursery and tried-and-true shipping process, you get a greater chance of success at home.
Looking for more roses to add to your collection? Check out our guide to popular types of roses.
Full Planting & Care Instructions
Product Details
| Mature Height: | 3-4 ft. |
| Mature Width: | 3-4 ft. |
| Sunlight: | Full Sun, Partial Shade |
| Bloom Season(s): | Spring Blooming, Summer Blooming, Fall Blooming |
| Growth Rate: | Moderate Growing |
| Botanical Name: | Rosa 'Radtko' |
| Does Not Ship To: | AZ |
| Grows Well In Zones: | 5-10 outdoors |
Growing Zones: 5-10 outdoors
(hardy down to -10℉)
Customer Reviews & Photos
Based on 452 reviews
Double knockout roses
Excellent experience and the roses I purchased ( and I purchased 5 , 4 bushes 1 rose tree) and they are all doing great
I love this bush and
I love this bush and especially the bright red color.
Looking for the “RIGHT” rose
So far I am enjoying this rose bush. “Time will tell. ”
After I got all broken
After I got all broken stems trimmed off from shipping and transplanted they are starting to look good.
Double knock out rose hedge in front of my porch
Very good. They were planted two days after arriving. During a heat wave but I watered thoroughly in the morning. They seem to be doing fine. I may have confused their sun requirements with fairy roses. The area is dappled with shade and sunlight rather than full sunlight. I hope this is enough sun.
