Rosa White Knock Out® PP20,273
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White Knock Out® Rose sets pure white flowers against foliage so dark it reads almost black when young, and that contrast is the reason to choose it. Rosa 'Radwhite' grows about 3.5 feet tall and wide in full sun, hardy from Zone 4 through Zone 11.
Bloom runs from spring through fall on a compact bushy plant, with a light floral scent.
Knock Out roses were bred for disease resistance first. They hold clean foliage through humid summers with no fungicide, bloom continuously without deadheading, and need nothing beyond a hard cutback in early spring. That combination is why they took over the landscape trade.
This one is notably drought tolerant, earning a Blue Ribbon in the WUCOLS low-water trials. White reads brightest at dusk and in the shadier corners of a bed, which is worth considering when you place it. Cut back by about a third in early spring. Shipped on its own roots.
Height 3'- 4' Spread 3'- 4'
USDA Hardiness Zones 4-11
Lowest Temperatures -30°F to -20°F
Full sun - more than 6 hours of direct sun per day
Reblooming
Give your new plant the best start possible. Click here for general planting instructions.
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