Double Knock Out® Red Shrub Rose
Even more compact and shade-tolerant than Knock Out®, it's ideal as a low hedge!
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 15 to 18. 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 4- by 4-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 | 'RADtko' |
| PPAF | PP#16,202 |
| Item Form | Trade Gallon (3qt) |
| Zone | 4 - 9 |
| Bloom Season | Early Summer - Late Summer |
| Plant Height | 3 ft - 4 ft |
| Plant Width | 3 ft - 4 ft |
| Bloom Size | 2.5 in |
| Additional Characteristics | Butterfly Lovers, Double Bloom, Easy Care Plants, Rose Hips, Bloom First Year, Flower, Free Bloomer, Repeat Bloomer, Award Winner |
| Bloom Color | Red |
| Flower Shape | Double |
| Foliage Color | Medium Green, Burgundy |
| Light Requirements | Full Sun |
| Moisture Requirements | Moist, well-drained |
| Resistance | Black Spot, Disease Resistant, Cold Hardy, Drought Tolerant, Heat Tolerant |
| Season Of Interest | Summer |
| Soil Tolerance | Normal, loamy |
| Uses | Landscapes, Border, Cut Flowers, Hedge, Ornamental |
| Restrictions | Canada, Guam, Hawaii, Puerto Rico, Virgin Islands |
Easy as 1-2-3
Anyone can grow roses - all that's needed is a spot with 6 hours of sun a day. Roses are even well suited to container growing, so you don't have the excuse of no garden space!
Here's all there is to it!
 STEP 1 - When your roses arrive, open the box immediately and soak roots in lukewarm water for 12 to 24 hours. If you can't plant them right away, you may leave them in their boxes for up to a week in a cool, dark place. Sprinkle roots with water every few days. (Please note: You can also grow roses in containers that are at least as big as a bucket.) |
STEP 2 - Dig a hole about 18" deep and 24" wide. Make sure it's large enough to give the roots plenty of room to develop after planting. Loosen the soil at the bottom and sides. Build a mound in the center of the hole and set rose on top. For vigorous growth, abundant blooms and lush foliage, try adding J&P's Root Boost |
STEP 3 - Fill the hole with two thirds of the remaining soil. Add water, let it soak in, then finish filling the hole. Tamp down lightly to remove air pockets and water well. Spread mulch around the plant to suppress weeds and retain moisture. Water 3-4 times a week until leaves begin to grow, weekly thereafter. |
Find Your Climate/Planting Zone
Simply enter your zip code to find your area's climate zone, and then review our Summer or Winter Care of Roses for detailed information for growing roses in your region. Click here for the zone map.
Seasonal advice and suggestions for maintaining your roses.