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The Double Knock Out
The Double Knock Out rose blooms almost continuously from May to frost, adorned with numerous charming flowers clustered in groups of 3 to 15. Bright red, fully double colors (20 to 25 petals) are slightly lighter on the reverse side, adding a unique texture to the flowers. The colors fade cleanly, lasting about two weeks on the bush.
Characteristics
Variety Name: Double Knock Out ®
Patented Name: RADtko
Group: Modern Garden Roses
Class: Shrubs, Floribundas
Collection: KNOCK OUT®
Hybrid: Carefree Beauty x Razzle Dazzle
Breeder: Meilland (France) / Star® Roses and Plants (USA) / William J. Radler (USA)
Creation Year: 1992 / 2011
Form: Compact, rounded bush
Height / Width: 60-120 cm / 100 cm
Blooming: Continuous
Fragrance: Light
Color: Cherry Red
Flower Diameter: 6-7 cm
Flower Type: Double (up to 25 petals)
Leaf Size and Color: Small, semi-glossy, medium green, dense, leathery foliage.
Disease Resistance: High
USDA Zones: 4 – 9
Ideal for:
Landscape Design – city greening, flowerbeds, low hedges, mixed borders.
Awards:
2007: Gold Medal; Best Trial Rose; Best Floribunda – Australia; 2010: First Prize; Best Floribunda – Tasita (Italy); 2011: Bronze Medal – Nagasaki (Japan).
This variety forms a beautiful, dense, uniform, and well-rounded bush, reaching a height of 60-80 cm (up to 120 cm in warmer climates). Its dark green, dense, leathery foliage with bright red highlights on young shoots exhibits exceptional disease resistance without needing phytosanitary treatment. The only care required for the Double Knock Out ® rose is a very short annual pruning in February-March.
Part of the KNOCK OUT® collection, the Double Knock Out ® rose shares its strong, abundantly flowering, and highly healthy characteristics with other varieties in the series. It is worth noting that the Double Knock Out rose is less drought-tolerant but more cold-resistant than the original Knock Out with single and semi-double blooms.
The vibrant and ever-blooming Double Knock Out ® will grace any flowerbed, create stunning borders, and form low, easy-to-maintain hedges. Planted in large pots, it will beautify terraces, paved yards, patios, balconies, and verandas with its radiant presence.
