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Rosa Double Knock Out® (Shrub Rose)

Rosa Double Knock Out®, Rosa 'Radtko' PP16202 CPBR#3104, Double Knock Out® Rose, Shrub Roses

Rose 'Double Knock Out®', Rosa 'Double Knock Out®', 'Double Knock Out®' Rose, Shrub Roses, Rose bushes, Garden Roses, Rosa'Radtko', Red Roses, Red Flowers

Blooming its heart out, Rosa Double Knock Out® is a compact shrub rose which produces abundant clusters of fully double, vibrant cherry-red flowers, up to 3 in. across (7 cm), packed with up to 24 petals. The blossoms do not fade in the heat and stand out against the disease-resistant, dark purplish-green foliage. Blooming continuously from spring until frost, the flowers are followed by decorative orange-red hips. The foliage turns purple to burgundy in fall. Easy to grow, low maintenance, drought tolerant, and self-cleaning, this popular shrub rose is an exceptional choice for the landscape and suits every garden and lifestyle.

Rosa Double Knock Out® belongs to the Knock Out® shrub roses which are known for their compact size, long bloom season, bright colors, profuse flowering, exceptional resistance to black spot, and winter hardiness.

  • Grows in a rounded, bushy and well-behaved shrub, up to 3-4 ft. tall and wide (90-120 cm).
  • Best grown in full sun or partial sun, in rich, fertile with adequate moisture, well-drained soils. This rose is noted for its ability to bloom in as little as 3 hours per day of direct sun with excellent disease resistance.
  • An excellent choice for beds, and borders where it can be planted among shrubs, annuals, and perennials. May be planted in large groups to create a colorful hedge or along a foundation to provide a bright border.
  • Total blackspot resistance makes this shrub a truly disease-free landscape rose.
  • This shrub rose does not require special care. However, for best performance, cut back every year in early spring after the last threat of frost has passed.

Requirements

Hardiness 5 - 11
Heat Zones 1 - 10
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, H1
Plant Type Roses
Plant Family Rosaceae
Genus Rosa - Shrub Rose, Rosa
Common names Rose
Exposure Full Sun, Partial Sun
Season of Interest Spring (Late)
Summer (Early, Mid, Late)
Fall
Height 3' - 4'
(90cm - 120cm)
Spread 3' - 4'
(90cm - 120cm)
Spacing 36" - 48"
(90cm - 120cm)
Maintenance Low
Water Needs Average
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Showy, Fruit & Berries
Attracts Butterflies
Garden Uses Beds And Borders, Hedges And Screens
Garden Styles Informal and Cottage, City and Courtyard, Traditional Garden
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Do I Need?
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Rosa (Shrub Roses) Rosa (Rose)
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Alternative Plants to Consider

Rosa rugosa ‘Alba’ (Rugosa Rose)
Rosa rugosa ‘Purple Pavement’ (Rugosa Rose)
Rosa Stormy Weather (Climbing Rose)
Rosa Enchanted Peace™ (Hybrid Tea Rose)
Rosa Pinkerbelle™ (Hybrid Tea Rose)
Rosa Sweet Spirit™ (Hybrid Tea Rose)
View All Our Rosa - Shrub Rose

Recommended Companion Plants

Nepeta ‘Six Hills Giant’ (Catmint)
Geranium ‘Rozanne’ (Cranesbill)
Alchemilla mollis (Lady’s Mantle)
Stachys byzantina (Lamb’s Ears)

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Combine Early-Flowering Clematis with your Climbing Roses
Pretty Roses and Clematis Combination Ideas (Part 2)
Combine Late-Flowering Clematis with your Climbing Roses
Combining Roses and Clematis
Native Plant Alternatives to Rosa rugosa (Rugosa Rose)
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Native Plant Alternatives to Rosa multiflora (Multiflora Rose)
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Best David Austin Roses for Gardeners in the Midwest
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Climbing or Rambler Roses for my Garden?
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Plants with Pink Flowers to Add Romance to Your Garden
While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.
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Requirements

Hardiness 5 - 11
Heat Zones 1 - 10
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, H1
Plant Type Roses
Plant Family Rosaceae
Genus Rosa - Shrub Rose, Rosa
Common names Rose
Exposure Full Sun, Partial Sun
Season of Interest Spring (Late)
Summer (Early, Mid, Late)
Fall
Height 3' - 4'
(90cm - 120cm)
Spread 3' - 4'
(90cm - 120cm)
Spacing 36" - 48"
(90cm - 120cm)
Maintenance Low
Water Needs Average
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Showy, Fruit & Berries
Attracts Butterflies
Garden Uses Beds And Borders, Hedges And Screens
Garden Styles Informal and Cottage, City and Courtyard, Traditional Garden
How Many Plants
Do I Need?
Explore Great Plant Combination Ideas
Rosa (Shrub Roses) Rosa (Rose)
Not sure which Rosa (Shrub Roses) to pick?
Compare Now

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