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Sister of the Famous Knock Out® -- Greatest Landscape Rose!
v1171.jpgDouble Knock Out® Shrub Rose

Double Knock Out® Shrub Rose

Trade Gallon (3qt)
Item # 45318
Buy 3+ at $22.95
4-inch Pot
Item # 48775
Buy 3+ at $12.95
Buy 6+ at $11.95
Item is sold out.

Even more compact and shade-tolerant than Knock Out®, it's ideal as a low hedge!

Superb disease resistance -- especially to blackspot!
Plant Patent #16,202. Cultivar: 'RADtko.' Several years ago, Knock Out® wowed gardeners everywhere with its superb performance as a landscape Rose. Not only was it a tireless bloomer all summer and into fall, but it was terrifically resistant to blackspot and other diseases, keeping its healthy foliage in any climate. The same breeder has developed its sister seedling, with the same disease resistance, floriferousness, and fine landscape value -- plus DOUBLE-flowered blooms and even greater shade tolerance!

These blooms of shiny fire-engine red are about 2 1/2 inches wide and utterly unstoppable from early summer till frost. Most are fully double, some semi-double, with an average petal count of 18 to 25. These blooms are all high-centered in the classic Rose form. No need to deadhead this lively shrub -- the flowers just keep coming no matter what!

A bit tighter, more dense and compact than its famous sister, Double Knock Out® makes a fine low hedge in any sunny to partly shaded garden. It also works well when planted as a long ribbon of color through a border.

A great deal of Double Knock Out's® value as a landscape Rose comes from its four-season appeal and its resistance to blackspot, that scourge of other Roses! Not only is the bloom season exceptionally long, but the foliage takes on rich burgundy hues when it emerges in spring, adding another season of color to this shrub's merits!

Crown-hardy to -20 degrees F, this 3- by 3-foot shrub withstands drought, heat, humidity and, in addition to blackspot, pests such as the Japanese beetle, leafhopper, and rose midge. A landscape treasure you must not miss! And now there's another member of the Knock Out family -- extra-long-blooming Pink! Zones 4-9.

Genus Rosa
Variety Double Knock Out® 'Radtko' PP#16,202
Zone 4 - 9
Bloom Season Early Summer - Late Summer
Plant Height 3 ft
Plant Width 3 ft
Bloom Size 2.5 in
Additional Characteristics Bloom First Year, Flower, Free Bloomer, Repeat Bloomer, Double Blooms
Bloom Color Red
Bloom Season Summer
Foliage Color Burgundy
Light Requirements Full Sun
Moisture Requirements Moist,  well-drained
Resistance Cold Hardy, Drought Tolerant, Heat Tolerant
Season Of Interest Summer
Soil Tolerance Normal,  loamy
Uses Border, Cut Flowers, Hedge, Ornamental
Restrictions Puerto Rico, Virgin Islands, Canada, Guam, Hawaii

Bareroot or Container?

World's Finest Roses

Have you browsed through your favorite gardening catalog or website looking for the newest roses to plant in your garden and wondered whether it would be best to choose bareroot roses or those in nursery pots? Or does it matter? If you’re like most rose gardeners, this question has come up at one point or another. And we want to help you find the answer as to what’s the best for you and your garden.

Bareroot Roses


Bareroot roses are an inexpensive and easy option for early-season planting. In fact, late winter is the best time to plant. Bareroot roses meet the highest industry standards. They arrive dormant, which makes them ideal for planting. The roots get to acclimate to native soil, as opposed to the packaged soil. And of course, since they aren't in soil when you get them, there’s no mess to contend with.

Bareroot roses may look dead, with their brown roots and dormant stem, but plants that arrive this way actually have the advantage of being able to focus their energies on strong root development rather than having to support an extensive growth of leaves during planting, which is very stressful.

You can plant your bareroot roses earlier in the growing season as well, since there aren't any leaves to get nipped back by frost. They can typically be planted as early as six weeks before your area’s last frost date in the spring. Since they don’t have to provide water to leaves or flowers, they usually establish quickly.


Container roses should typically be planted in late spring and fall. They’re easy to plant (all you need is a trowel), and they provide instant gratification, as they aren't dormant and will have buds within a few short weeks, if they don’t when they arrive. They’re also perfect for transplanting into decorative containers and make an attractive gift.

Container roses are usually nicely leafed out, and may even have flowers on them, which is a great way for you to know when you purchase them what they’re going to look and smell like. As you can see, there are advantages to both bareroot or container roses, so whichever you decide is the best for your garden, we feel certain you’ll become a lifelong rose lover, if you aren't already!

Overall Rating: 5 Stars
Average Based on 1 Reviews Write a Review
Plants look great but Pack and Ship dept. needs help
John Rudy from MA wrote (September 19, 2012):
I bought 2 Knockout roses and 2 double knockout roses.When I opened the box I was dismayed at the way these plants were packed.Of the 4 roses only 1 had the plant ID in the soil,the other 2 were laying in the box,1 was missing.Luckily I could figure out what was what,because the plant that had the ID had roses .So I had 2 with flowers and 2 that didn't.On top of that 1 plant was missing alot of soil.All in all all right but I expected more from this well respected company.I ordered alot more different plants,hopefully these will be better.