White Knock Out® Rose
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White Knock Out® Rose

White Knock Out® Rose

$98.00
$98.00
$98.00
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‘Radwhite’ PP 20,273

 

White Knock Out® Rose combines the series' hallmark reliability with exceptional drought tolerance, earning blue ribbon recognition in the 2017-2019 Water Use Classification of Landscape Series trials. Single white blooms create striking contrast against dark green foliage while delivering continuous flowering from spring through fall without demanding constant attention. This cultivar maintains manageable proportions without aggressive expansion, making it ideal for sunny borders, heat-exposed walls, and water-conscious landscapes. Its proven low-water performance and sustained bloom cycle integrate seamlessly into cottage garden compositions alongside butterfly bush, Drift roses, forsythia, lilac, and hibiscus, or function as a standalone specimen requiring minimal supplemental irrigation once established.

Hardiness Map
Mature Height: 4'
Mature Width: 4'
Flower Season: Spring, summer, and fall
Sun: Full Sun
Hardiness Zone: 5 to 11
This plant is suitable for the low temperates below:
Temp (F)
Zone
Temp (C)
-20 to -10
5
-28.9 to -23.3
-10 to 0
6
-23.3 to -17.8
0 to 10
7
-17.8 to -12.2
10 to 20
8
-12.2 to -6.7
20 to 30
9
-6.7 to -1.1
30 to 40
10
-1.1 to 4.4
40 to 50
11
4.4 to 10.0