Photo by Melody

PlantFiles: Shrub Rose
Rosa 'Pink Double Knock Out'

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Family: Rosaceae (ro-ZAY-see-ee) (Info)
Genus: Rosa (RO-zuh) (Info)
Cultivar: Pink Double Knock Out
Additional cultivar information: (PP18507, aka Radtokopink; Double Pink Knock Out)
Hybridized by Cockcroft-Lavallee-Brown; Year of Registration or Introduction: 2006

» View all varieties of Roses

6 members have or want this plant for trade.

Class:
Shrub

Height:
36-48 in. (90-120 cm)

Spacing:
36-48 in. (90-120 cm)

Hardiness:
USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)
USDA Zone 11: above 4.5 C (40 F)

Bloom Color:
Medium pink (mp)
Deep pink (dp)

Bloom Shape:
Double

Flower Fragrance:
Slightly Fragrant

Bloom Time:
Late Winter/Early Spring
Mid Spring
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Mid Fall
Late Fall/Early Winter
Blooms repeatedly

Habit:
Shrub

Patent Information:
Patented

Other Details:
Shade-tolerant
Resistant to black spot
Resistant to mildew
Resistant to rust

Pruning Instructions:
Blooms on new wood; prune early to promote new growth

Soil pH requirements:
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)

Propagation Methods:
From softwood cuttings
From semi-hardwood cuttings
From hardwood cuttings
By grafting
By budding

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to view:

By Kell
Thumbnail #1 of Rosa  by Kell

By Kell
Thumbnail #2 of Rosa  by Kell

By vossner
Thumbnail #3 of Rosa  by vossner

By DATURA12
Thumbnail #4 of Rosa  by DATURA12

By DaylilySLP
Thumbnail #5 of Rosa  by DaylilySLP

By DaylilySLP
Thumbnail #6 of Rosa  by DaylilySLP

By eagerwatchdog
Thumbnail #7 of Rosa  by eagerwatchdog

There are a total of 25 photos.
Click here to view them all!

Profile:

5 positives
2 neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive sunkissed On Jun 15, 2014, sunkissed from Winter Springs, FL (Zone 9b) wrote:

I've had the red Knockout rose for many years, but happy to find the Pink Double on a clearance rack at Lowe's. Knock-out roses are the only rose I have luck with in our wet humid summers. They really like to be in full sun. Mine do get irrigation twice a week. The pink looks more like a rose than my red do.

Positive MurrayTX On Nov 29, 2013, MurrayTX from El Paso, TX (Zone 8a) wrote:

These grow very well in the brutal summer heat and mildly alkaline soils in this region. I have two that I planted in 2012 as 1.5 gallon pots that have gone from 8 inches this past winter to nearly 3x3 bushes in one season. I use a soaker hose, coffee grounds, and 3 inches of shredded city mulch. No pesticides or herbicides.

Neutral Iambe69 On Sep 17, 2011, Iambe69 from Park Ridge, IL wrote:

I planted four double pink knockout roses in my front landscape two years ago, and they are doing very well - lots of blooms, no back spot/mildew, Japanese beetles avoid, plenty of blooms, survive the Chicago winter. However, it drives me absolutely mad that the McDonalds, the gas station, the Dunkin Donuts, etc. has these same roses in their landscape. I am sick of seeing them. Further, the roses "pale-out" in a weird way, unlike other pink roses. I.e., the color is nice when it first blooms, but then changes to a strange pink/off-white color I'm not particularly fond of. I will remove them and replace them with some carefree beauty roses, which are also resistant to black spot/mildew. If I have to spend a bit more time on them, I don't mind - hopefully the Japanese Beetles will avoid them, too.

Positive vossner On Mar 31, 2011, vossner from Richmond, TX (Zone 9a) wrote:

All my knockouts (red, double pink, etc) do so well grown as standards. The only problem is that the canopy can get very big, thus causing the tree to get top-heavy and lean over. I've had to use metal supports to keep it from falling over and possibly breaking. Wood stakes will only help while the tree is young, that's why I've resorted to metal, which is not very attractive. As of this writing, the trunk on my Pink DBL KO tree is 1" in diameter. I also grow this plant as a shrub and it is equally lovely, blooming repeatedly throughout the season.

Positive eagerwatchdog On May 27, 2010, eagerwatchdog from Berwyn, IL wrote:

Perpetual bloomer and EXCEPTIONALLY hardy! Love this plant, doesn't need a lot of care than the other roses I have. The plant stands by it's name "resists bugs and/ aphids, resists blackspots, too". You can see the photos I uploaded for this plant... just simply stunning!, same thing with the RED DOUBLE knockout rose

Positive CreativeCountry On May 3, 2010, CreativeCountry from Petersburg, IN wrote:

I have several varieties of KnockOuts, but this one is very striking, so much so I had to check the tag. Very large, bright clean blooms. Beautiful color and I can see this plant used in so many ways. I have three in a triangular pattern around a very small tree, they are very impressive in groups and guaranteed color for months.

Neutral Kell On Oct 27, 2007, Kell from Northern California, CA (Zone 9b) wrote:

This rose is a sport of Double Knockout. This one has twice the number of petals as Knockout on 2 1/2 inch wide blooms. It has almost continuous bloom from spring to the first hard frost. new growth is a beautiful burgundy color.

Regional...

This plant has been said to grow in the following regions:

San Leandro, California
Lakeland, Florida
Pembroke, Georgia
Berwyn, Illinois
Chicago, Illinois
Park Ridge, Illinois
Indianapolis, Indiana
Petersburg, Indiana
Bowling Green, Kentucky
Gardiner, Maine
Frederick, Maryland
North Attleboro, Massachusetts
Kasota, Minnesota
Keansburg, New Jersey
Brooklyn, New York
Greenville, North Carolina
Raleigh, North Carolina
West Chester, Pennsylvania
Brookings, South Dakota
Clarksville, Tennessee
El Paso, Texas
Fort Worth, Texas
Richmond, Texas
San Antonio, Texas
Spring, Texas
Tomball, Texas
Madison, Wisconsin



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