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Double Knockout Rose

Double Knockout Rose

Double Knockout Rose (2 weeks after delivery)

Double Knockout Rose

Pam's Picks
The original "Knockout" Rose set the standard for rose bushes a few years ago. Well, the new "Double Knockout" Rose raised the bar, giving you twice the petals, twice the blooms and better disease resistance. Expect fuller flowers, longer lasting blooms,

*images shown are of mature plants

Lowest Price Online - Guaranteed

Double Knockout Rose

Double the Petals- Double the Roses!

Size:  2 Gallon

Ships Tomorrow
Wed, Jul 30
List: $49.95
Sale: $33.47
6 at $31.80 ea.
Size:  1 Gallon
July 24th, 2014
List: $29.95
Sale: $20.07
6 at $19.07 ea.
Planting Mix for Knockout Roses
Rose & Citrus Planting Mix

Helps your Double Knockout Rose get established in a fraction of the time, become more drought tolerant, and grow faster. Here's how:

Mycorrhizal Fungi and Beneficial Bacteria... It's like a Probiotic for your tree... creating an explosion of fine hair roots that vastly improves nutrient and water uptake.

Course Organic Compost... loosens and improves all types of soils while promoting proper pH levels. You get better drainage and moisture retention.

Microbial Fertilizers... including Sea Kelp, Yucca, and 100 other elements proven to gently feed your tree without burning the roots.

Soil Contents
Sale: $9.35
Espoma Plant Food
Espoma Rose-Tone

Whether you are trying to grow award-winning roses or simply want to have a lovely rose garden at home, Espoma Rose-Tone will help you achieve your goal for a healthy, long-blooming shrub.

Rose-Tone is a high quality rose food that provides important nutrients to promote healthy growth in roses. Both professional and beginner gardeners find that the vitamins in Rose-Tone help their plants produce an abundance of brilliantly colored blooms that last for a longer period of time.

Rose Tone
Sale: $12.03
Double Knockout Rose
Fertilizer Tablets
Double Knockout Rose

Fertilizer Tablets

This patented formula is slow release and will provide the nutrients needed for the first year of your plants life. This fertilizer will not burn your roots and is easy to install. Simply space the tablets evenly around your plants roots when planting. Be sure to water thoroughly after.

Fertilizer Tablets
Sale: $6.67

• One of the longest blooming periods available…
   starts late May or early June and lasts until the heaviest
   fall frost.
• Even more disease and insect resistant…
   (black spot, rust, mildew etc.).
• Virtually maintenance free…
   grows thick without pruning back flowers.
• Improved cold hardiness…
   thrives in Growing Zones 5-10.

The Double Knockout Rose gives you all the amazing characteristics of the original “Knock Out," but with more petals & better disease resistance.

The original “Knock Out” Rose quickly became one of the most popular rose bushes in recent history. Finally, a trouble-free rose with brighter, longer lasting blooms.

Amazingly, horticulturists have improved this incredible variety to create the “Double Knock Out” Rose.

The “Double Knock Out” gives you all the characteristics of the original “Knock Out" plus:

When planted in rows, they reach approximately 4 feet in height, making a great hedge or boundary. Use them to add color to your home or a wonderful scent to your back patio.

Thrives in containers or in the ground. This improved variety will even grow in shade… giving you more areas to plant.

With plenty of blooms to spare, you’ll enjoy fresh cut roses in your home from spring until fall. Depending on your soil conditions, your blooms can range from dark to light red.

We prune your Knockout Roses before we ship them out to give you an explosion of growth shortly after you plant them.

These amazing rose bushes will sell out quickly. We recommend that you order now while supplies are still available.

Growing Zones: 5-10

Mature Height: 3-4 ft.
Mature Width: 3-4 ft.
Sunlight: Full - Partial
Soil Conditions: Very Adaptable
Drought Tolerance: Great
Botanical Name: Rosa 'Radtko'
Does not ship to: AZ
Growing Zones 5-10
This plant is generally recommended for zones: 5-10
(blue area above)

You are in Growing Zone:

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Why Buy from Fast Growing Trees?

Save Money

Save thousands by shopping in the convenience of your own home instead of paying a landscaper for trees that struggle.

Tree to Door

Receive well developed, large trees and shrubs that thrive in your area.  Varieties that are easy to grow, long lived, and trouble free.  Your plants are clearly marked for size, pruned to a nice pleasing shape, and are delivered right to your doorstep.

No Chemicals

We shun growth regulators and other chemicals that make plants look good in the stores but struggle to survive once planted.

Large Size

Some nurseries charge you for a taller tree then chop 1/3 off, so it will fit in a shorter box. This saves them on shipping but can harm your tree and make you wait longer for it to grow back.

Can I Plant Now?

Yes... Your Double Knockout Rose can be planted any time of year... even Winter. Roots will continue to grow on warm days, giving your tree a head-start for Spring. 

How do I Request a Different Ship Date?

Call us at 888-504-2001, email us or enter your requested ship date in our shopping cart next to the billing information section. 

Additional Info for Those Who Love to Read:

Orders are occasionally delayed if we see really bad weather approaching, or if we encounter unusual circumstances. A small number of our plants show a specific release date. If you purchase one of these and would like your other items sooner, just let us know. 
Amount of Order Shipping Charge
Less than $15 $8.95
$15.00-$23.99 $11.95
$24.00-$39.99 $14.95
$40.00-$79.99 $18.95
$80.00-$98.99 $23.95
$99+ 28%

It's Easy to Plant your Double Knockout Rose

Specific Directions for Double Knockout Rose

Your Knockout Roses will thrive in an area the receives full to partial sunlight, and prefer six to eight hours of sunlight a day. Afternoon shade will be more benifical for your Roses than morning shade.

Your natural soil will be great for your Knock out Roses especially if it's well drained, and isn't too light or sandy. Keep your soil moist, not over saturated. To help hold the moisture in spread mulch around the base of your Knockoutroses.Knockout roses prefer to receive water at their base instead of receiving water from overhead.

You'll see blooms on your Knockout Roses early every Spring, that will last until your first frost. Knockout Roses produce new blooms every four to six weeks and will love it if you give them organic fertilizer once a month after their first blooming cycle.

Step 1 - Dig Your Hole

Select a site with full to partial sun and moist or well drained soil for your Double Knockout Rose.

If you're planting a hedge, mark out a visual guide by placing stakes five to six feet apart and looping string around them. Plant the where the stakes are and they'll grow together to make a dense privacy screen.

First, dig each hole so that it is just shallower than the root ball and at least twice the width.

Then loosen the soil in the planting hole so the roots can easily break through.

Use your shovel or try dragging the points of a pitch fork along the sides and bottom of the hole.

Step 2 - Place Your Plant

Next, separate the roots of your Double Knockout Rose gently with your fingers and position them downward in the hole.

The top of the root flare, where the roots end and the trunk begins, should be about an inch above the surrounding soil.

Then make sure the plant is exactly vertical in the hole.

To make it just right, use a level.

Step 3 - Backfill Your Hole

As you backfill the hole, apply water to remove air pockets.

Remove debris like stones and grass and completely break up any dirt clumps.

Water your Double Knockout Rose again after the transplant is complete.

To help retain some of that moisture, it's recommended that you place mulch around each plant to a depth of 2"-3" up to but not touching the trunk. Organic mulches such as wood chips also help to better soil structure as they decompose.

Average customer rating:

Most useful customer reviews:
By: Connie in Glenpool, OK
Theyre awesome! I planted 8 of the 1 gallon knockout bushes in a 24 foot section of my backyard fence line. I now have superb color in a place that was one quite boring. They grow fast!! I have had many compliments. The color is fantastic.

By: Val in Atlanta, GA
Great! Blooms forever! Deer Wont Eat Them!

By: Brenda
The knockout rose is my favorite of all roses.  I planted some in the spring, and look good.

By: Crystal in Gulfport, MS
I bought these b/c of the assurance that not much work was required. THESE ROSES HOLD TRUE TO THEIR DESCRIPTION. I ordered 2 3-gallon bushes & a rose tree. I have since ordered 5 more 3-gallon roses & another rose tree. I had roses INSTANTLY after planting & Im no gardener by far. These roses are so trouble-free & I am so pleased! My roses are the talk of my housing community!

By: Vicki Brown
Beautiful!!! Purchased 10 3-gal. plants for small hedge. Continuous blooms. Hardy for snowy, northern climates.

By: Monica Hansen
I loved that the bush was loaded with lots of red roses all the time. Tolerates heat great with temperatures above 100 degrees.

By: Lila Bett
These arrived nice and healthy. I planted them right away and the weather here in SC turned beastly hot. I did water them every day the first few weeks and they have survived the summer here and are still blooming away. Very nice and hardy.

By: Constance Brons
The Double3 Knockout Rose is a great addition to my roses. It has produced a huge number of very bright red roses consistently.

By: Carol Johnson
This is the best plant in my yard. if you can't seem to grow roses try growing Knockouts. They are a no fail roses.Anyone can grow them successfully.

By: grace
Beautiful rose bush, it rewards you with the most generous red roses as it grows....Easy to care for and you will be thankful you bought this.

By: Ron Emerick
I put these roses in a raised stone bed I had built for my wife for mother's day and they did not disappoint. They have flowered from day 1 and still look great.

By: Chuck Beutel
Plants arrived a little worse from wear as the delivery man must have tossed the boxes around. After unpacking and a little water and TLC, they bounced back and are doing well.

By: Ramona Rodriguez-Surdez
I planted several different colors of these double knockout roses and love them! Lots of blooms and the colors are amazing!

By: Valerie Lacoste
This rose bush is awesome! Keeps flowering until frost.
The bush has survived this intense heat wave, although the flowers are not as pretty as last year. Hopefully, now that the days are getting a tad cooler, it will be back to its former beauty.

By: Sharon Winston
I purchased and planted these roses in September last year. They not only made it through one of the harshest NM winters we have had in a long time, they out bloomed our other pink knoockout roses that were a year older and more established.

By: Larry Urban
Beautiful roses. Plant was a bit smaller than expected and is slow to get started, but worth the wait.

We got the roses on a timely basis. They were already blooming. They are growing good and look great. Good Service. Hubert

By: Gary Rabik
Very full blooming and easy maintenance. Excellent additon to our garden.

By: Michael Seese
Bushes arrived nicely packaged. I was a bit let down when two of my four starting growing pink roses instead of red as advertised. Also, not a very rosey looking bloom. They look more like the last two pictures on the site and not the first couple. A pretty flower... just doesn't look like what you would think a rose looks like. Overall, not as impressed as I hoped to be. Not very fond of the pink bushes, either.

By: Kurt Steele
These are nothing less than amazing. In their third summer, we have prolific, large bushes with just a couple of exceptions where the light is a little less. Monthly fertilizing really helps. In our northern CT area, rainwater is usually sufficient, but I do supplement when they are really dry.

By: Nancy McCaslin
Even though we had some problems with the delivery date and the Root-blaster was missing when they did arrive, the roses all arrived alive. They are thriving quite well after 2 months in the ground and are beautiful.

By: Steve
My wife couldn't believe I ordered these plants online. I planted 6 in front of the deck last summer, gave them Miracle Grow and they are doing great! They bloom all summer and are over 3 ft tall in one year!

By: Michael
Very pleased with my order of double knock out roses, they have been very productive and blooms numerously.

By: Naveen Aggarwal
Very beautiful plant and fast growth. I love them. I have two of these roses and plan to buy more...

By: arlynn
shipped quickly. good bushes.

By: Kristie
Easy to plant, Easy to care for! Beautiful!

By: Laura
These were above and beyond our expectation! We want to order even more for the back yard and try the yellows ones! Thanks so much for your speedy service too!

By: John Butler
As good as advertised.All my plants doubled in size and never stop blooming until winter.

By: dessie velissaratos
excellent rose ,the blooms are so bright and last a long time, the plant always looks full and healthy and adapts to new environments very easily.
I would recommend it to anyone .

By: Judith Mosley
These are a beautiful flower to add to any garden!

By: angel villalpando
i have 5 different roses at my house and the double knockout rose just might be next because i have received packaged products from this site before excellent

By: Erik
Very beautiful flowers that are easy to maintain. I have them in a spot that receives full sun and they are doing very well. I get a lot of compliments on these as people walk by the yard.

By: anthony caruso
took a chance and ordered royal empress (very small size) my wife is laughing at me & 5 double knock out roses (slammer than they sell at home depot for same price, today is aug 2nd 2012 we'll see what happens!

By: Lewis Renkel
These are the talk of the neighborhood. I really can't take any credit for it because they truly are a plant and forget beauty.

By: mamajdm
We have never been able to keep a plant alive, so when a friend mentioned double knockout rose bushes, we discovered Fast Growing Trees. As the site showed, we are just now two weeks in to them being planted and they have an explosion of open blooms that are stunning. Neighbors are constantly stopping us to comment on them and are shocked when we tell them they are only two weeks old. We are planning on buying the matching tree for our front yard as well! Highly recommend this to those of you who have not had the "green thumb" in the past! :)

By: Greg Colvard
These are really great. They grow like crazy, are very hardy, and are covered all season with beautiful blooms. Not much scent, but no dead-heading required. These are my wife's favorites, out of all the flowers in our garden.

By: Monica Rodriguez
I've been so excited for these to come in, waited 2 months. I still planted them and I hope they grow beautifully as everyone says but know one thing: these roses are NOT red! They're fushia/hot pink. The pictures all look red and the description says dark to light "red." They're pink if I ever saw pink. I'm disappointed because I specifically looked for red and could have gotten them elsewhere had I known.

By: R. Lieboff
Not thrilled with my purchase. I bought 9 of these plants. they looked OK when they arrived, but not great. I paid $21 per plant. The day after I planted them, I went to a "box store" to pick up more mulch and noticed that they were carrying the EXACT same double knockout roses....same labeling on the containers and same tags....they were identical! Price $12.98....AND they looked healthier because they had not spent days in shipping container.

By: Tammy Frymire
I had 15 1 gal DK Roses planted 3 years ago. 1st of all I want to say dealing with Fast Growing Trees was a wonderful experience (long story). My puppy got hold of 2 of them before we could get them in the ground and I thought he had killed them. He did stunt their growth because the other 13 are doing fabulous. My husband hates mowing around anything, I put these were he wouldn't have to, and other than the 1st day we planted them I have never even watered them. That says a lot because it gets extremely hot here in S. IN. My husband is so impressed that he wants me to plant more in a another area that he doesn't want to have to weed wack. Unfortunately I'm going to have to wait until next spring to do it, but if he is actually willing to do the planting that SCREAMS beauty and success. I can't wait! I'll keep you posted!!!

Add your own review

Browse 16 questions and 29 answers
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How tall & wide do these knockout roses get ?
Vernon K on May 30, 2014
Best Answer: My DKOR is planted in a planter box and I keep it trimmed. It is about 3'-4' wide and 4' height. It is absolutely beautiful always full of lovely fragrant roses.
Reply · Fiona M on May 30, 2014
· Add Answer · I Have This Question Too (6)
I planted the Double Knock Out Rose 1 week ago and have noticed the leaves are turning brown and are shriveling up. Also the middle of the roses are turning brown. Is this to be expected? This is the first time I have planted a rose bush in my yard.
Joan R on Jun 6, 2014
Best Answer: I ordered 16 double knock out bushes over a year ago and now have a beautiful hedge in my front yard. I cut about 3 dozen roses each week and the blooms last! I did have some leaf spot early on and sprayed them with a mix of milk and water which seemed to do the trick. They are so beautiful that one night someone took 2 bushes right out of the ground! I tried replacing with double knock outs from Kmart and noticed that those bushes are not thriving like the others. I will replace then from Fast Growing Trees. Enjoy!!
Reply · DORI Z on Jun 6, 2014
· Add Answer · I Have This Question Too (3)
how many rose bushes are in the 2 gallon order?
A shopper on Jun 28, 2014
Best Answer: One Rose Bush is included in the 2 gallon size, but it's an older, larger, fuller more mature Double Knockout Rose Bush.
Reply · Allison BStaff on Jul 7, 2014
· Add Answer · I Have This Question Too (1)
how much cold can they withstand in a flower pot?
celia b on Jun 16, 2014
Best Answer: Double Knock Out Roses are cold hardy to about 23 degrees. This goes for being planted in the ground or in a pot. They're recommended for zones 5 - 10.
Reply · Allison BStaff on Jun 18, 2014
· Add Answer · I Have This Question Too (1)
do they come in pink or yellow?
A shopper on Jun 14, 2014
Best Answer: I AM SURE THEY DO
Reply · MARK F on Jun 16, 2014
· Add Answer · I Have This Question Too (1)
How do you ship these plants across state borders? I am in S.E. Pennsylvania.
A shopper on Jun 4, 2014
Best Answer: We have the proper certification from various state agencies throughout the U.S. Different states have different requirements as to what can be shipping in and out.
Reply · Justin FStaff on Jun 4, 2014
· Add Answer · I Have This Question Too (1)
There were no instructions on what to do with the Fert-Pact I bought 2 sets of 3 with the 2 double Knockout Rouse bushes. Do I bury the 3 of them at time of planting. Or do I bury 1 at a time so many months apart?
Diana F on Jul 27, 2014
· Add Answer · I Have This Question Too (1)
Am I able to choose to color I want?
beverly on Jul 17, 2014
Best Answer: When I bought the knock out roses in Red, as I recall, pink and white were the other choices. Just be sure to select the one you want. They are listed individually rahter than have you select which color you want from a drop down panel.
Reply · William A on Jul 17, 2014
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Are these shrubs deer resistant?
A shopper on Jun 6, 2014
Best Answer: I do not know, we do not have deer in our neighborhood. No problem with other critters like squirrels, raccoons and foxes. My guess that if deer bother other roses, they are likely to bother these.....but the thorns on roses may be their protection.
Reply · MARYJO S on Jun 6, 2014
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are they fragrant?
A shopper on Jun 5, 2014
Best Answer: Not really. And this is my second year with them and they are still about the same size.
Reply · Abe S on Jun 5, 2014
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Do they have thorns?
A shopper on Jul 19, 2014
Best Answer: Yes they do.
Reply · patricia h on Jul 20, 2014
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My plants have little holes in the leaves right now. Any suggestions?
A shopper on Jul 10, 2014
Best Answer: It is probably due to insects feasting on the leaves. I would suggest a pesticide like Seven. In my area of the midwest, Japanese beetles love to feast on my roses and they are relentless.
Reply · Joseph M on Jul 11, 2014
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Will double knock out roses do well in partial sun?
A shopper on Jul 6, 2014
Best Answer: Yes. I have 5 double knock out rose bushes. I placed them in a location with morning sun and afternoon shade. They seem to be doing fine. They survived the rough NJ winter just fine.
Reply · David S on Jul 6, 2014
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What size container should be used when roses first arrive and do they have to be replanted in a larger container as they mature? If so, what size container does a full-grown bush need?
Nancy R on Jun 6, 2014
Best Answer: If the plant is healthy, I would just plant it in the ground. The one I received I planted immediately and it has grown 4 times its size since last spring. It blooms all spring and summer, it's beautiful.
Reply (1) · Linda H on Jun 6, 2014
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I have just heard that all knock out rose bushes have developed a very serious virus and no kind of treatment to destroy this virus,is this true?
A shopper on Jul 28, 2014
Best Answer: No, i have it on my deck without a problem!
Reply · jennifer g on Jul 29, 2014
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OK I found out what to do with the Fert-Pact place around plant at time of planting all 3. What I want to know now is this Fert-Pact organic or is there chemicals that will hurt worms and good bugs?
Diana F on Jul 27, 2014
· Add Answer · I Have This Question Too (0)