Double Knock Out® Rose

Categories: Plants, Shrubs, Small Shrubs (Deciduous)

Double Knock Out® Rose (Rosa ‘RADtko’ DOUBLE KNOCK OUT)This carefree landscape rose has all of the great features of Knock Out plus the added bonus of fuller blooms with twice as many petals; cherry red blossoms and deep purple fall foliage provides your garden three seasons of interest

Characteristics

Average Landscape Height:

3 feet

Average Landscape Width:

3 feet

Growth Rate:

medium

Genus:

Rosa

Cultivar:

Radtko

Flower Color:

cherry red

Flower Period:

from late spring to early fall

Summer Foliage Color:

dark green

Fall Color:

dark purple

Minimum Light:

full sun

Maximum Light:

full sun

Minimum Moisture:

average

Maximum Moisture:

moist

Plant Form:

round

Canopy:

closed

Pruning:

late winter pruning

Pollution Tolerance:

medium

Other Species Names:

Knockout Rose

Branching:

multi-stemmed

Flower Bud Color:

ruby

Flower Fragrance:

medium

Ornamental Features

Double 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 deep purple in the fall.

Landscape Attributes

Double 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

Double 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 medium 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.

Double Knock Out® Rose

Characteristics

Ornamental Features

Landscape Attributes

Planting & Growing

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Double Knock Out® Rose

Characteristics

Ornamental Features

Landscape Attributes

Planting & Growing

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