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Click for previous Image Image 1 of 4 Rosa x Radtko DOUBLE RED KNOCK OUT® ROSE
Image Property of Sooner Plant Farm

Image Property of Sooner Plant Farm



Plant Characteristics

Bark Color*
  • Brown
Bark Type*
  • Thorny
  • Smooth
Brand*
  • Knockout Rose
  • Texas Superstar
Cultural Information*
  • Powdery Mildew - Moderate Resistance
  • Leaf Spot - Moderate Resistance
  • Root Rot - High Resistance
  • Leaf Scorch - Moderate Resistance
Flower Color*
  • Red
Flower Type*
  • Double Blooming
Growth Habit*
  • Compact Growing
Growth Rate*
  • Fast
Leaf Color Fall*
  • Green
  • Dark Yellow/Gold
Leaf Color Spring*
  • Green
Leaf Color Summer*
  • Green
Leaf Type*
  • Deciduous/Herbaceous
Nature Assets*
  • Attracts Hummingbirds
  • Attracts Bees
  • Attracts Butterflies
Plant Type*
  • Rose
  • Shrub
Preferred Planting Season*
  • Summer Planting
  • Spring Planting
  • Fall Planting
Preferred Soil Conditions*
  • Adapts Well to Most Soil Types
  • Moist
  • Well-Drained
  • Drought Tolerant
  • Average
Propagation Methods*
  • Cuttings or Divisions
Season of Interest*
  • Late Summer/Early Autumn
  • Fall Flowering
  • Summer
  • Summer Flowering
  • Fall
  • Late Spring/Early Summer
  • Spring Flowering
  • Spring
Sun Exposure*
  • Prefers Full Sun in Northern States
  • Tolerates Full Sun in Northern States
  • Tolerates Full Sun in Southern States
  • Prefers Full Sun in Southern States
Uses*
  • Accent Plant
  • Landscape Specimen
  • Cut Flowers
  • Mass Planting
  • Wildlife Habitat
  • Border Plant
  • Dried Flowers
  • Under Power Lines
 

Homeowner Growing & Maintenance

Knock Out® Rose is easy to grow, and adapt to most conditions.Prefers slightly acidic soils. Feed once a year with a slow release fertilizer. To give your plant the best start possible, we include a free fertilizer packet.

Interesting Notes

Thrives in very humid climates where most other roses need spray maintenance. For a complete Fact sheet on Knockout Roses go here The Knockout Rose Family

4.50/5.00 stars Avg. Customer Rating:
(4 reviews)

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DOUBLE RED KNOCK OUT® ROSE

Rosa x 'Radtko'
PPAF Plant propagation prohibited

Buy Double Knock Out® Rose online. Twice the number of petals as Knock Out®, presenting a fuller, richer,cherry red inflorescence that is simply breathtaking. Blooms maintain a continuous show of color from early June to hard frost, with beautiful foliage almost year round. Compact and upright fashion, more winter hardiness and shade tolerance.

Mature Height:

3-4 Feet

Mature Spread:

3-4 Feet

Hardiness Zone:

4-9

What's My Hardiness Zone?

Family: Rosaceae · Common Name: Rose

FREE with every plant purchased:

  • The Sooner Guarantee: For details, click here!
  • A pre-measured amount of Polyon® Best-Paks time release fertilizer that keeps your plant well nourished for one year.
  • Pre-hydrated Hydro-Gels are included in the top of each container to use when planting as they help retain soil moisture, and plants will establish more quickly with less transplant shock. Plants will also survive drought-like conditions and accidental missed waterings better.
  • Planting and Care Instruction brochure.
  • Catalogs of new and exciting plant brands, such as Garden Debut® and Proven Winners®.

DIY Irrigation SuppliesWe use and recommend www.dripdepot.com for our irrigation needs, from simple to install micro and drip systems, to commercial grade irrigation parts and supplies.

Purchase DOUBLE RED KNOCK OUT® ROSE Online

Jumbo gallon Potted

SKU: 1360

(4.04 qrts / 3.82 liters)
(31 units available now - SG)
(1 units arriving on 9/1/18) (?)
Standard Package
KO



$35.00

Add to Cart

2 gallon Potted

SKU: 3970

(1.87 gallons / 7.09 liters)
(2772 units available now - G)

Standard Package
KO



$45.00

Add to Cart

3 gallon Potted

SKU: 3971

(2.90 gallons / 11.0 liters)
(5372 units available now - G)

Standard Package
KO



$75.00

Add to Cart

5 gallon Potted

SKU: 5165

(4.10 gallons / 15.55 liters)
(5 units available now - S)

Standard Package
KO



$95.00

Add to Cart

7 gallon Potted

SKU: 4227

(6.08 gallons / 23.03 liters)
(86 units available now - G)

Standard Package
KO



$200.00

Add to Cart
   
 

Sooner Help Zone

Quote of the Day

"God is easy to please, but hard to satisfy"

Customer Testimonials

These trees were bought as a memorial to me and my husband's  mothers that we both lost last year. Thanks for some great trees...


Ginny
Van Alstyne, TX
June 2018

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