David H.Verified Buyer
Fast Growing Trees is now Trees.com!
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
Original price $39.95, sale price $25.95, 35% off
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Size: 1 gallon
Original price $39.95
Sale price $25.95
Ends Monday—20% off EVERYTHING!
Add this item to cart and get 20% OFF on your order with code
| Discount level | Cart total |
|---|---|
20% OFF | No minimum |
25% OFF | $400–$599 |
| 30% OFF | $600 or more |
| Sale ends Monday at 11:59PM | |
Pay in 4 interest-free installments for orders over $50.00 
Questions? Call our plant experts: (800) 973-8959
Customers Also Viewed
Michael K.Verified Buyer
Love our roses!!!
Sanka P.Verified Buyer
3 years later, it is a showstopper
David H.Verified Buyer
Double knockout roses
Michael K.Verified Buyer
Love our roses!!!
Sanka P.Verified Buyer
3 years later, it is a showstopper
Double the Petals on Double the Roses
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 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: | AK, AZ, HI |
| Grows Well In Zones: | 5-10 outdoors |
Growing Zones: 5-10 outdoors
(hardy down to -10℉)
Customer Reviews & Photos
4.7
Based on 606 reviews
Rodney B.
10/1/2026
Verified Buyer
Really nice
Really nice
10/1/2026
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Marilyn N.
9/28/2026
Verified Buyer
Double Knot Rose Bush
Love my new double knot rose bush. I haven't had any blooms yet but it was late in the season. I put them along my cabin on one side. I wanted something that deer would not eat. They stay away with all the thorns. My cabin is in northern Minnesota, I will be preparing them for the winter soon. I'm going to reach out if anyone has suggestions on the best way to do that.
9/28/2026
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Chris M.
9/26/2026
Verified Buyer
Wow wow wow
Order 7 seven gallon roses in July 2026 for delivery end of August. They arrived on time after I had prepared the bed and were healthy and happy from the start. Planted them with plenty of manure and compost and a drip line. OMG I am so happy with them! The pics are site before, delivery, site after planted, and just 3 weeks in the ground. They are looking better everyday. Have had the trim a few ingrown central stems but overall good to go! Competitive price with the sale, and it's very hard to find plants this big and they are so healthy.
9/26/2026
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Colleen M.
9/25/2026
Verified Buyer
Seems like it’s doing well,
Seems like it’s doing well, few flowers on it now, so far like my purchase!
9/25/2026
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Martin T.
9/24/2026
Verified Buyer
Great roses! Received them ready
Great roses! Received them ready to make flower buds after and grow. After 2 1/2 weeks they’re growing and blossoming. Good purchase!
9/24/2026
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