Knock Out Rose

Rosa radrazz

(Photo by Talisa Placide)

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View the Location on Campus

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Taxonomy _(1,2)

Classification: Angiosperm, dicot
Family: Rosaceae
Common name: Knock Out rose, Shrub rose

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General Information _(1,2)

USDA Plants Hardiness Zones: 4-9
Growth Habit: Shrub

• Size: 4 ft
• Flowering: May to frost

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Diagnostic Characteristics

Leaves _(1,2)

• Other: Purple-green color in summer, dark red in fall

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Stem/Bark

(Photo by Talisa Placide)

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Flower ₍₁₎

• Color: Pink to red 

(Photo by Talisa Placide)

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Fruit

(Photo by Jessica Bartek)

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Horticultural Information _(1,2)

• Light: Full sun
• pH: Slightly acidic
• Landscape Uses: Hedges, borders, ornamentals
• Other: Avoid cold areas

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Interesting Facts ₍₁₎

• Resistant to most rose diseases

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References

1) Christman, Steve. (2012). Rosa Radrazz. Retrieved from www.floridata.com/ref/r/rosa_radrazz.cfm
2) Missouri Botanical Garden.  Retrieved from  http://www.missouribotanicalgarden.org/gardens-gardening/your-garden/plant-finder/plant-details/kc/b481/rosa-radrazz-knock-out.aspx

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