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Rose 'Knock Out'     


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Knock Out is a popular variety of Rose, which belongs to the Rosa genus (Rosa 'Knock Out'). Knock Out is a patented hybrid variety. Blooms typically mature to a diameter of 8.9 cm (3.47 inches imperial) and produce a mild, spicy tea-like fragrance, whilst displaying in these approximate colours:   Bright pink and   UA red. The mature flowers take a Single form, with an approximate petal count of 7. Leaves appear approximately as a   Cadmium green and   Burgundy colour.

Knock Out is a bright, fluorescent cherry-red shrub rose. Produces large single to semi-double blooms throughout the season – bushy compact growth with glossy, dark green leaves.

Knock Out grows as a Deciduous and is a Flower. Being deciduous, expect it to shed its leaves annually. Knock Out is known for its Shrub habit and growing to a height of approximately 1.22 metres (3.96 feet). This variety tends to bloom in late spring.

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

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 Knock Out have been kindly provided by our members.

How to grow Knock Out

  • Full Sun

  • Medium

Can be used for landscaping – this variety is very hardy and disease tolerant.

Can be grown in the ground or as a container plant.

Fertilize in spring and summer, and prune while dormant. For best blooming, Knock Out needs at least 4-6 hours of direct sun.

Plant in a location that enjoys full sun and remember to water moderately. Keep in mind when planting that Knock Out is thought of as hardy, so this plant will survive close to or on freezing temperatures. Use USDA Hardiness Zone 5 - 11 as your guideline for the appropriate climate for this plant. Ensure your soil is loamy and has a ph of between 6.6 and 7.5 as Rose is a weakly acidic soil to weakly alkaline soil loving plant.

Growing Knock Out from seed

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

Transplanting Knock Out

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

Harvesting Knock Out

Knock Out Patent Information

Australia – Application No: 2003/061 in 2003 1

United States – Patent No: PP 11836

Rose Knock Out Etymology

Registration name: RADrazz
Bred by William J. Radler (United States, before 1995).
Introduced in United States by Conard-Pyle (Star Roses) in 2000.
Introduced in France by Selection Meilland in 2001 as ‘Knock Out’. 1

Other Names for Rose 'Knock Out'

Knock Out ™, Knockout ™, Purple Meidiland

Latest Rose 'Knock Out' Reviews

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