Growing Zones: 5-10 outdoors(hardy down to -10℉) 5-10 outdoors
- Mature Height:
- 3-4 ft.
- Mature Width:
- 3-4 ft.
- Growth Rate:
- Botanical Name:
- Rosa 'Radtko'
- Does Not Ship To:
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. This improved variety will even grow in the shade, giving you more areas to plant.
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.
Elevate the elegance of your garden with the effortless Double Knock Outs!
Customer Reviews & Photos
- rose bushes
Knock out rose
I am very satisfied they are just what i exspected. Already blooming
I just planted the double knockout rose and so far it has adapted to its new environment really well and has started blooming! Very happy with my purchase.
Beautiful rose bush
The Knock Bush arrived in great condition and it's already begun producing many roses
Love my roses! I had bought 4 of them. They came in perfect condition. First time planting roses. Although they had went through a shock period; probably due to my inexperience. They now have beautiful new growth on them.
Double Knockout rose
I could not plant this when it arrived but it lasted just fine until I could get it in the ground. Now it is thriving and I'm looking forward to seeing it grow bigger and more beautiful.
Planting & Care
1. Planting: Choose a well-drained site in full to partial sun (4 to 8 hours of sunlight per day). If you choose partial sun, make sure your plant receives at least 6 hours of direct sunlight each day (afternoon shade is better than morning shade).
Start by digging a hole twice as wide and twice as deep as the root ball. Backfill the soil until you have a hole the same size or slightly larger than the container the rose is in. Plant the rose at the same depth as it is in the container. Space Knock Out Roses 3 feet apart. Mulch the planting site to retain soil moisture and keep competing growth from coming up around the rose bush.
2. Watering: Keep Knock Out Roses moist at all times. Water around the roots rather than overhead (or showering). Generally, this means watering about once or twice weekly, or more often in dry conditions.
3. Fertilizing: Fertilize with an organic rose fertilizer once a month.
4. Pruning: Prune every spring, all the way back to 12 inches off the ground, after it is established. When you do prune, sterilize your sharp pruning shears with hot water or rubbing alcohol. This guarantees a cleaner, healthier cut. Always prune at an angle and not straight across.
Estimated Shipping Time: Most orders ship immediately, however we are currently experiencing delays and could take up to 7-10 days from date of purchase. As noted on the website, some items are seasonal, and may only ship in spring or fall. Once your order is shipped, you'll receive an email with a tracking number.
|Amount of Order||Shipping Charge|
|Less than $15||$11.95|
|$149 +||FREE SHIPPING!|