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Knock Out® Rose

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One of the most popular roses in the world today, primarily due to its low maintenance, superior disease resistance and incredibly long period of bloom, with seemingly endless cherry red flowers; all roses need full sun and well-drained soil

Characteristics

Other Species Names:
Knockout Rose
Average Landscape Height:
3 feet
Average Landscape Width:
3 feet
Genus:
Rosa
Cultivar:
Radrazz
Branching:
multi-stemmed
Plant Form:
round
Canopy:
closed
Growth Rate:
fast
Pruning:
late winter pruning
Flower Color:
cherry red
Flower Bud Color:
ruby
Flower Fragrance:
medium
Flower Period:
from late spring to early fall
Summer Foliage Color:
dark green
Fall Color:
burgundy
Maximum Light:
full sun
Minimum Light:
full sun
Maximum Moisture:
moist
Minimum Moisture:
average
Pollution Tolerance:
medium

Ornamental Features

Knock Out® Rose is smothered in stunning lightly-scented cherry red flowers at the ends of the branches from late spring to early fall, which emerge from distinctive ruby-red flower buds. The flowers are excellent for cutting. It has attractive dark green deciduous foliage which emerges burgundy in spring. The glossy oval compound leaves are highly ornamental and turn an outstanding burgundy in the fall.

Landscape Attributes

Knock Out® Rose is a multi-stemmed deciduous shrub with a more or less rounded form. Its average texture blends into the landscape, but can be balanced by one or two finer or coarser trees or shrubs for an effective composition.

Planting & Growing

Knock Out® Rose will grow to be about 3 feet tall at maturity, with a spread of 3 feet. It tends to fill out right to the ground and therefore doesn't necessarily require facer plants in front. It grows at a fast rate, and under ideal conditions can be expected to live for approximately 20 years.

This shrub should only be grown in full sunlight. It does best in average to evenly moist conditions, but will not tolerate standing water. It is not particular as to soil type or pH. It is somewhat tolerant of urban pollution. This particular variety is an interspecific hybrid.

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