Red Double Knockout Rose

General Information

Red Double Knockout Rose is a wonderful sister of the famous Knockout Rose, but with twice as many petals. Beautiful cherry red blossoms cover the bush from spring to the first hard frost. Continual new blooms push out the spent blooms eliminating the need for deadheading. Petal count = 18 to 24.  Enjoy the soft fragrance and dazzling color of Red Double Knockout all summer long! Great low maintenance choice to add brilliant, long lasting color to your landscape. Plant along a fence or foundation.  Wonderful as a specimen, border, or group planting along a walkway.

Additional Information

Rosa ‘RADtko’ grows best in Full Sun.  It will grow 3-4′ tall.  Plant in zones 5 to 10. Heat and drought tolerant.

Care & Shipping Notes

Prefers slightly acidic, well drained loam with medium moisture. Fertilize and water regularly during the growing season. Prune in late winter. Improved pest and disease resistance. Good black spot and downy mildew resistance. NOT AVAILABLE FOR SALE IN THESE US STATES AND TERRITORIES: AK, HI, GM, PR, VI. Also, WE NO LONGER SHIP TO CALIFORNIA due to Department of Ag restrictions on live plants.

Additional information


Bloom time






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Mature Width 3 to 4 Feet
Mature Height 3 to 4 Feet
Light Full Sun
Planting Zone 5 to 10

Planting Zone Map

US Planting Zones


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