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Rose 'Double Knock Out'     


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Double Knock Out is a popular variety of Rose, which belongs to the Rosa genus (Rosa 'Double Knock Out'). Double Knock Out is a patented hybrid variety. Blooms appear in these approximate colours:   Munsell red and   Debian red. When mature, blooms are roughly 6.4 cm (that's 2.5 inches in imperial) in diameter.The mature flowers take a Double form, with an approximate petal count of 18. Leaves appear approximately as a   Pakistan green and   Burgundy colour.

Double Knock Out is a medium red shrub rose. Small, clustered blooms of approx 2.5-3 inches in diameter (18-25 petals) appear in flushes throughout the season and produce little or no fragrance.

This variety is a Flower that typically grows as an Perennial, which is defined as a plant that matures and completes its lifecycle over the course of three years or more. Double Knock Out is known for its Shrub habit and growing to a height of approximately 92.0 cm (2.99 feet). This variety tends to bloom in early summer.

United States is believed to be where Double Knock Out originates from.

Double Knock Out Rose needs a moderate amount of maintenance, so some level of previous experience comes in handy when growing this plant. Ensure that you are aware of the soil, sun, ph and water requirements for this plant and keep an eye out for pests.

This variety plant info is provided by the myfolia gardener's wiki. All details about Double Knock Out have been kindly provided by our members.

How to grow Double Knock Out

  • Partial Sun

  • Medium

Can be used for beds and borders, garden or landscape. Disease susceptibility: very blackspot resistant.. Remove spent blooms to encourage re-bloom. 1

Try to plant in a location that enjoys partial sun and remember to water moderately. Keep in mind when planting that Double Knock Out is thought of as very hardy, so this plant will tend to survive through freezing conditions. The USDA Hardiness Zones typically associated with Double Knock Out are Zone 4 and Zone 9. Ensure your soil is loamy and has a ph of between 4.5 and 8.0 as Rose is a moderately acidic soil to weakly alkaline soil loving plant.

Growing Double Knock Out from seed

As a hybrid variety, this plant will not reliably grow true to type from seed.

Transplanting Double Knock Out

Ensure that temperatures are mild and all chance of frost has passed before planting out, as Double Knock Out is a very hardy plant.

Harvesting Double Knock Out

Double Knock Out Patent Information

Bred by William J. Radler (United States, 2004).
Introduced in United States by Conard-Pyle (Star Roses) in 2004.
PP #16202
United States – Patent No PP 16,202

Rose Double Knock Out Etymology

Cultivar Registration name: RADtko

Other Names for Rose 'Double Knock Out'

Double Knockout, Double Knock Out ™


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