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Double Knock Out® Rose Rosa 'Radtko'

  • Double Knock Out® Rose

    Double Knockout Red Rose has tons of blooms and a dense shape.

  • Double Knock Out® Rose

    Knockout Roses make low maintenance hedges of bright color.

  • Double Knock Out® Rose

    Blooms have multiple petals with a reddish-pink bloom.

  • Double Knock Out® Rose

    Foliage in a dark greenish purple, with burgundy new growth.

  • Double Knock Out® Rose

    Knockout Roses have been cultivated for maximum disease resistance.

Regular price $29.95 Sale price
$29.95
  • 1 Year Plant
  • 4-Pack (1-Year) (8% Off)
  • 2 Year Plant
  • 4-Pack (2-Year) (10% Off)
  • 3 Year Plant

  Call to Order! (855) 935-4692
9AM-6PM ET M-F. 9:30AM-6PM ET Sat & Sun.


Product Details

Growing Zones: 5-10 outdoors

(hardy down to -10℉) 
    
    
    
      5-10 outdoors
    
   Map 5-10 outdoors
  • Mature Height:
  • 3-4 ft.
  • Mature Width:
  • 3-4 ft.
  • Sunlight:
  • Full-Partial
  • Growth Rate:
  • Moderate
  • Botanical Name:
  • Rosa 'Radtko'
  • Does Not Ship To:
  • AZ

Product Description

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

Customer Reviews
4.5 Based on 184 Reviews
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  • condition
  • plant
  • blooms
  • buds
  • shipping
  • shape
  • branches
  • roses
  • three
  • rose bushes
MU
09/01/2020
Michael U.
United States United States
I recommend this product
Waiting for the bloom

Just got them a couple of weeks agobio they are hanging on. No bloom. Some small growth. Not sure how much to expect this year

LT
07/10/2020
Lieng t.
United States United States
I recommend this product
Double knock out rose

When I open the box there were at least three or more new young branches just grow on their shipping way I was soooo happy will buy more from Fast Growing Three in the future for sure

JC
06/12/2020
Joy C.
United States United States
I recommend this product
Knocking Me Out!

These roses are doing great in our clay soil, and the colors are amazing next to our white fence!

SH
06/11/2020
Susan H.
United States United States
Bearutiful Rose Bushes

these are beautiful!

SM
06/09/2020
Susan M.
Beautiful

Excellent. We have bought these before and this time around they came in an unacceptable state and were resent immediately Great customer service


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.


Shipping Details

Estimated Shipping Time: Most orders ship immediately, however we are currently experiencing delays and could take up to 11-14 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
$15.00-$23.99 $13.95
$24.00-$39.99 $16.95
$40.00-$79.99 $19.95
$80.00-$98.99 $24.95
$99.00-$124.99 $29.95
$125.00-$148.99 $39.95
$149 + FREE SHIPPING!

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