ShrubsRed Knockout Rose
Rosa 'Knock Out'
Red Knockout Rose (Rosa 'Knock Out') is a medium-growing shrub, hardy in USDA zones 5-9, that matures to about 3-5 ft × 3-4 ft. It does best in full sun with medium water needs in clay and loam (silt) soil. Expect cream, yellow and orange blooms in spring. It stands up well to heat, grows happily in containers.
- USDA zones
- 5-9
- Sun
- Full sun
- Water
- Medium
- Mature size
- 3-5 ft × 3-4 ft
- Spacing
- Less than 12 inches
- Growth rate
- Medium
- Maintenance
- Medium
- Soil
- Clay, Loam (silt)
- Foliage
- Green
- Bloom color
- Cream, Yellow, Orange, Pink, Purple, Red, Variegated, White
- Bloom season
- Spring
- Tough against
- Heat
- Watch out for
- Problem for children
- Native to
- Temp. & Subtropical Northern Hemisphere (such as Europe & Asia)
In the landscape
Data sources
Freeze survival
Will it survive your winters?
Hardiness zones show a normal bad winter. We check the worst one — Red Knockout Rose is hardy to about -20°F (estimated from USDA zone 5), so we'll score it against the real coldest nights your area has actually had.
Powered by ~35 years of daily lows from the nearest NOAA weather station. A risk read, not a guarantee — a sheltered spot or mature plant beats the odds.
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