Double Knock Out® Rose
Rosa x Knock Out Double Red 'Radtko'
Originating from the same cross that produced the original Knock Out®, Double Knock Out® represents the next generation in The Knock Out® Family of Roses. Its full, double blooms have the appearance of a classic rose, while offering the same strong resistance to black spot as the original. It shares the same bloom cycle and is also slightly more winter-hardy.
(Image: Brehob Nurseries)
Zones: 5 to 11
Height: 3-4 ft
Width: 3-4 ft
Sun Exposure: Full Sun
Soil: Normal, Sandy, Clay/Heavy, Dry
Bloom Time: Summer through Fall
Tolerance: Drought, Salt