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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*
  • Dark Yellow/Gold
  • Green
Leaf Color Spring*
  • Green
Leaf Color Summer*
  • Green
Leaf Type*
  • Deciduous/Herbaceous
Nature Assets*
  • Attracts Bees
  • Attracts Hummingbirds
  • Attracts Butterflies
Plant Type*
  • Rose
Preferred Planting Season*
  • Summer Planting
  • Spring Planting
  • Fall Planting
Preferred Soil Conditions*
  • Moist
  • Well-Drained
  • Drought Tolerant
  • Adapts Well to Most Soil Types
  • Average
Propagation Methods*
  • Cuttings or Divisions
Season of Interest*
  • Late Summer/Early Autumn
  • Spring Flowering
  • Summer
  • Fall Flowering
  • Fall
  • Late Spring/Early Summer
  • Summer Flowering
  • Spring
Sun Exposure*
  • Prefers Full Sun in Northern 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

Roses are fairly easy to grow and adapt to most conditions. Feed once a year with a slow release fertilizer. To give your plant the best start possible, we include free fertilizer with every order.

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'
PP16202 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)
(12457 units available now - G)

Standard Package
KO



$35.00

Add to Cart

2 gallon Potted

SKU: 3970

(1.87 gallons / 7.09 liters)
(8598 units available now - G)

Standard Package
KO



$45.00

Add to Cart

3 gallon Potted

SKU: 3971

(2.90 gallons / 11.0 liters)
(18856 units available now - G)

Standard Package
KO



$75.00

Add to Cart

5 gallon Potted

SKU: 5165

(4.10 gallons / 15.55 liters)
(776 units available now - SG)

Standard Package
KO



$95.00

Add to Cart

7 gallon Potted

SKU: 4227

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

Standard Package
KO



$200.00

Add to Cart
   
 

Sooner Help Zone

Quote of the Day

Christians that did the most for the present world, are the ones that thought the most of the next.

Customer Testimonials

I couldn't be more pleased with the wonderful plants I ordered!! They were packed so carefully and with love....I could tell. :) I can hardly wait to order again now that I've finally found a caring, honest source to purchase plants that I'm unable to obtain in my small town. Warm hugs and blessings all around


Louise
Glenwood Springs, CO
November 2016

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