Model # R3824G8IN

Internet #205091198

OnlinePlantCenter 8 in. Potted Double Red Knockout Rose Plant

Discontinued OnlinePlantCenter

8 in. Potted Double Red Knockout Rose Plant

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Product Overview

Plant Patent 16202. Very striking, prolific clusters of double, brilliant strawberry red, 2.5 in. flowers appear atop upright tidy mounds of green foliage from early summer to frost. Grows in almost any soil with no pruning or deadheading needed, although trimming back by one-third each spring will encourage flowering. One plant can provide a spot of color, several in a row create a low flowering hedge.

  • An ideal landscape shrub rose with a very long bloom period
  • Twice as many petals as regular knockout roses
  • Resistant to rust, black spot and powdery mildew
  • Incredibly easy to grow and virtually maintenance free
  • 2 gal. pot, ships in pot unless state or federal regulations require otherwise
  • We’re sorry, due to state or federal regulations, this plant cannot be shipped to Arizona, California, Idaho, Indiana, Montana, New Jersey, Nevada, Oregon, Texas, Utah or Washington
  • May ship in a dormant state, with bare branches and no leaves
  • Performs best in plant growing zones 5 to 9, when grown in other zones, special care will be necessary
  • To accommodate mature size or when planting in groups, space 4 ft. away from other plants or structures



Mature Height (in.)
Mature Width (in.)


Additional Characteristics
Disease Resistant,Drought Tolerant
Blossom Color
Botanical Name
Rosa 'RADtko
Common Name
Hardiness Zone
5 (-20 to -10 F),6 (-10 to 0 F),7 (0 to 10 F),8 (10 to 20 F),9 (20 to 30 F)
Rose Type
Shipped As
Sun Tolerance
Full Sun

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Customer Questions & Answers


Are these roses fragrant or is there another type that would be better for a strong fragrance, which I want. Thank you
Asked by: Jennathomedepot
Thank you for your inquiry. The Double Red Knockout Rose has a slight spicy fragrant. For another option, 'Mr. Lincoln is a hybrid red rose with a strong scent.
Answered by: Trade Star Landscape Pro
Date published: 2015-09-20

can they flourish as a potted plant?

will rose thrive as a potted plant versus being planted in ground? How often should they be watered? How often should they be fertilized?
Asked by: BC
Hello, the Rose would prefer to be planted in the ground but will also grow in a pot. It should be planted into a pot with holes in the bottom for drainage and should be watered each time the soil becomes dry (test with your finger about 4" down into the soil). They should be fertilized at least once a year with Rose fertilizer. It is best to follow the instructions on the fertilizer bag itself.
Answered by: Trade Star Landscape Pro
Date published: 2016-05-11

I'm concerned about red rosette virus

I have 3 knockout roses. All were the type where the roots were wrapped - not in containers. All three have the red rosette virus. Are the potted ones less sussceptical to that virus? By the way all three that I have to replace were purchased from Home Depot.
Asked by: wiplyr
Hello. Red Rosette Virus is spread by eriophyid mites, most likely from nearby wild multiflora rose plants. Adult females overwinter in the cracks and crevices of the branches and twigs, making their home on the leaves in summer. The soil does not transmit disease. In the nursery, regular miticide applications are applied.
Answered by: Trade Star Landscape Pro
Date published: 2016-06-06

what is the tallest a knockout rose bush grows i am looking for shrub rose bushes taller than 5ft for my back yard i want to use these as borders

Asked by: DDK1
The plant grows to approximately 4 feet at maturity.
Answered by: CommunityAnswer
Date published: 2016-06-06
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Customer Reviews

8 in. Potted Double Red Knockout Rose Plant is rated 3.0 out of 5 by 2.
Rated 4 out of 5 by from Healthy plant This plant was healthy upon arrival, nice deep green leaves awaiting the flowers to appear. It was a little small in packaging, I wish I could have received a little larger.
Date published: 2014-05-21
Rated 2 out of 5 by from Disappointed Product arrived packed well. We followed the instructions as directed. The plant did not survive after 3 weeks. The leaves turned brown and eventually died. Not sure it should be shipped so early in its "life." We have other box roses which we bought locally. But this item was out of stock in the local Home we ordered it on line. Totally disappointed.
Date published: 2016-05-31
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