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Double Knock Out® Rose Rosa 'Radtko'

229 reviews
Shrubs & Hedges

  • Double Knock Out® Rose
  • Double Knock Out® Rose
  • Double Knock Out® Rose
  • Double Knock Out® Rose
  • Double Knock Out® Rose

* Images shown are of mature plants

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.

  • This cultivar is more resistant to black spot, rust, and mildew than any other variety.
  • It's also resistant to pests, making harsh sprays unnecessary.
  • This improved variety will even grow in the shade, giving you more areas to plant.
Regular price $29.95 Sale price
$29.95

Size:
  • 1 Year Plant
  • 4-Pack (1-Year) 8% Off
  • 2 Year Plant
  • 4-Pack (2-Year) 10% Off
  • 3 Year Plant
Quantity:

  Call to Order! (800) 973-8959


Product Details

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
Grows Well In Zones: 5-10 outdoors
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      5-10 outdoors
    
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Growing Zones: 5-10 outdoors

(hardy down to -10℉)

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!

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. 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
$149.00-$178.99 $49.95
$179 + FREE SHIPPING!

Customer Reviews & Photos

Customer Reviews
4.5 Based on 229 Reviews
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Filter Reviews:
JM
06/14/2021
John M.
United States United States
Excellent product!

Excellent! They arrived quickly and very healthy!

RN
06/10/2021
Ronald N.
United States United States
Great!

From ordering to receiving, the experience was great. The plants are growing!

A
06/03/2021
Anonymous
United States United States
Great product

Beautiful roses

Fast-Growing-Trees.com Double Knock Out® Rose Review
A
06/01/2021
Anonymous
United States United States
Great!!!

Planted immediately and it’s doing great!! I’m very pleased — so much so I’ve ordered two more, coral and yellow. The yellow smells delicious!

KM
05/28/2021
Kathy M.
United States United States
Gorgeous Roses

The Knockout rose bush is the best around! These Roses bloom year round and require very little maintenance! They grow fast and are covered in flowers! I love this plant!

Fast-Growing-Trees.com Double Knock Out® Rose ReviewFast-Growing-Trees.com Double Knock Out® Rose Review
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