White Knock Out rose
Rosa 'White Knock Out'
USDA zones4 to 11
SunNeeds full sun (6+ hours)
WaterHandles moderate to moist soil
Size3 to 4 feet tall3 to 4 feet wide
- Bloom season
- Spring, summer, autumn
- Soil types
- Sand, loam, clay, chalk
- Soil pH
- Acid, alkaline, neutral
Garden uses
Attracts
Notes
'White Knock Out' rose (Rosa 'White Knock Out') is a shrub for borders, containers, and hedges. It is hardy to USDA zone 4, or down to -30°F (-34°C). This plant likes full sun and average to moist soil of most types. The fragrant flowers open from spring through autumn. Butterflies and bees visit the blooms. It grows about 35 to 47 inches tall and wide, so it fits easily into a low maintenance planting.