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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| Discount level | Cart total |
|---|---|
20% OFF | $200–$399 |
25% OFF | $400–$599 |
| 30% OFF | $600 or more |
| Sale ends 6/23 at 11:59 PM | |
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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 433 reviews
Rose Bushes
They arrived sooner than we expected and were in great condition. Thank you
Double knock-out rose shrub
I received a very healthy plant. Had many buds, but looked like no progress so I fertilized it and I think that helped. I'm excited to see the roses!
Mail service beat up the
Mail service beat up the boxes pretty bad but the roses were packaged well and sustained no damage. Happy about that. All six roses are doing well and have new growth on them already.
Double knock Out Rose Shrub
I purchased six one-gallon Double Knock Out Rose Shrubs in September 2024, and I’m happy to report that every single one came back strong and healthy this spring. They are absolutely thriving! These rose shrubs have exceeded my expectations—they’re hardy, beautiful, and have grown significantly in just a short time. I’ve included a photo of how they looked when they arrived, along with updated pictures showing their impressive growth. I was so pleased with the results that I recently purchased two more. Highly recommend!
Very Nice!
Arrived in great shape. Healthy plants already blooming with new buds forming. Happy with this purchase.
