Double Red Knock Out® Rose
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Double Red Knock Out® Rose

Double Red Knock Out® Rose

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‘Radtko’  PP 16,202


The Double Red Knock Out® Rose takes upkeep out of the equation for rose lovers. From spring til frost you'll enjoy its display of double red blooms that have a hint of spicy apple scent. Reaching a mature height and width of 4 feet, the blooms are accompanied by spectacular foliage that starts with a hint of reddish tint that shifts into a dark green with growth. Autumn arrives and the foliage displays deep purple. This quick grower is an excellent addition in any landscape plan. Uses range from colorful hedge and screen, container, boundary between landscape areas, cut flowers, foundation, and add beautiful contrast when planted along side flowers displaying purple, yellow, and blue.

Joseph's Take

Joseph's Take

Double Pink and Double Red Knockout Roses are nice if they are planted where they will not need to be trimmed, like on a property line. Sunny Knockout can be planted in part shade and is fragrant so I like to keep that one a little closer.  

Hardiness Map
Mature Height: 5'
Mature Width: 5'
Flower Season: Spring through frost
Sun: Full Sun
Hardiness Zone: 5 to 11
This plant is suitable for the low temperates below:
Temp (F)
Temp (C)
-20 to -10
-28.9 to -23.3
-10 to 0
-23.3 to -17.8
0 to 10
-17.8 to -12.2
10 to 20
-12.2 to -6.7
20 to 30
-6.7 to -1.1
30 to 40
-1.1 to 4.4
40 to 50
4.4 to 10.0