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Double Knock Out® Shrub Rose
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
was $26.95
sale $24.26
Buy 3+ at $22.95
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
BloomStartToEnd Early Summer - Late Summer
PlantHeight 3 ft
PlantWidth 3 ft
BloomSize 2.5 in
AdditionalCharacteristics Bloom First Year, Double Blooms, Flower, Free Bloomer, Repeat Bloomer
BloomColor Red
BloomSeason Summer
FoliageColor Burgundy
LightRequirements Full Sun
MoistureRequirements Moist,  well-drained
Resistance Cold Hardy, Drought Tolerant, Heat Tolerant
SeasonOfInterest Summer
SoilTolerance Normal,  loamy
Uses Border, Cut Flowers, Hedge, Ornamental
Restrictions Canada, Guam, Hawaii, Puerto Rico, Virgin Islands
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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.