Double Knock Out® Rose

Item #10141, 4" Pot.
FREE Shipping
on orders of $99+*


Twice the beauty! Enjoy scores of lightly fragrant, cherry red flowers that have twice as many petals as the original Knock Out® Rose. Moss green foliage. Hardy and virtually maintenance-free — no deadheading to remove faded flowers. Reaches 3-4' tall and wide. Blooms from late spring until first frost. May be covered by USPP #16,202 or other patents. This patented variety is sold under license from the patent owner. Radtko cultivar

125% Survival Guarantee!

Since 1816, Stark Bro’s has promised to provide customers with the very best fruit trees and plants. It’s just that simple. If your trees or plants do not survive, please let us know within one year of delivery. We will issue a one-time merchandise credit to your account equaling 125% of the original product purchase price. Read more about our warranty policy.


Bloom Color Red
Shade/Sun Full Sun
Soil Composition Loamy
Soil Moisture Well Drained
Soil pH Level 5.5 - 7.0
Zone Range 5 - 9

Zone Compatibility

This Variety's Zone Range 5 - 9
My Hardiness Zone ?
The USDA hardiness zones offer a guide to varieties that will grow well in certain climates. Each zone corresponds to the minimum winter temperatures experienced in a given area. Make sure that your hardiness zone lies within the zone compatability range of this variety before ordering.

Size & Spacing

Mature Size

When your plant matures, it will be approximately 3 - 4' tall x 3 - 4' wide.

Recommended Spacing

We recommend spacing these plants 3 - 4' apart to ensure room for growth.

Tools & Supplies

Having the proper tools and supplies when growing your own can make the difference between a good harvest and a great harvest! Here's a list that our experts recommend for this variety.

Planting & Care

Learn all about how to grow roses in The Growing Guide. An entire section of our website dedicated to your growing success.

Shipping Information

Arrives when it's time to plant

Your success is our priority. We work hard to make sure that your order arrives at the ideal time for planting in your location based on your local climate conditions.


We've 'tagged' this item with specific keywords that help you find other products that share features or characteristics with this one. Select a tag below to view all the items that have that particular trait.

Questions & Answers

Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 52 questions Browse 52 questions and 196 answers
Why did you choose this?
Stark Bro's Store
Red roses one of my favorites
Dianne S on May 9, 2021
I love these roses
latona S on May 5, 2021
Red roses one of my favorites
Dianne S on May 9, 2021
Filled out order. Enjoy Rose's in garden
Sheri S on May 8, 2021
I love these roses
latona S on May 5, 2021
I want to grow roses like my dad has in his garden.
Tracy M on May 4, 2021
these pump out the flowers and give almost full time color. easy to grow.
Kyle b on Apr 30, 2021
It is easy to grow, beautiful and affordable.
Sally K on Apr 26, 2021
carol a on Apr 26, 2021
Wanted something that would bloom all summer. I also understand it is a easy rose to grow.
Teresa S on Apr 25, 2021
One of my favorite flowers and will make a great addition around my patio.
Jill N on Apr 24, 2021
I have noticed so many houses in my neighborhood growing these gorgeous roses and I want a few in my garden also.
Vivienne on Apr 24, 2021
they are pretty easy to take care of
clarien c on Apr 23, 2021
Have three
Pat A on Apr 20, 2021
had at previous property...beautiful
thomas p on Apr 19, 2021
Already have some in my yard.
Joyce R on Apr 16, 2021
My wife and I added an addition to the front of our home and plan on setting these along the front facing the road for color and beauty.
Homer J. on Apr 13, 2021
Long blooming time; excellent reputation
SuffolkBigBird on Apr 11, 2021
Wifey poo
Douglas M on Mar 25, 2021
Excellent non-stop blooms and fragrant
Mary M on Feb 15, 2021
These should be beautiful too.
Richard D on Feb 2, 2021
Hardy good plants
RUTH on Jan 31, 2021
For beauty
MONICA M on Jan 25, 2021
blooms all summer
ROBIN-LYNN M on Oct 20, 2020
I read all the reviews and chose due to the care and condition of the roses received by customers.
I???m excited to plant and enjoy!!
Thank you in advance
Nancy N on Oct 11, 2020
Wife likes and deserves these roses! The LOVE Rose ????
Frank N on Sep 23, 2020
doing a reno on house and yard; need no-fuss landscaping I read these are beautiful, fragrant, disease resistant and low maintenance.
Jacquie R on Sep 12, 2020
Because I like knock out roses
Sharon A on Aug 31, 2020
Very beautiful @ a good price.
Lucy S on Aug 29, 2020
Double knock out rose. Love red roses.
Judy B on Aug 12, 2020
I like
Dorothy Fleming S on Jul 27, 2020
They are dold everywhere in MN your price was right. Planting in rain garden very sunny snd well drained. Oir winters where I live have been lots milder in.yhe last 15 years. Think it will be a good fit
Nancy W on Jul 11, 2020
Ease of maintenance and smaller (slightly ) size.
Bonnie R on Jun 26, 2020
for curb appeal.
donna s on Jun 24, 2020
Vicki P on Jun 24, 2020
Romayne Y on Jun 11, 2020
Beautiful rose.
Alan S on Jun 10, 2020
I love red roses.
Christine R on Jun 10, 2020
I have these already but I have a blank space and I needed to put one of these in it for I love these double knockout roses
Linda C on Jun 3, 2020
Double Knock Out Roses are the best and most beeautiful I have ever grown on 65 years.
James C on May 31, 2020
red, top of search list, bush rose
william h on May 29, 2020
Gorgeous photo and I already have 2 plants in my garden. I need to get more!
Michelle W on May 22, 2020
Moved in Texas 2010. n fell in love with these knock out Rose's An lost many relatives as my Mother n sister this past year n many of these colors r their favorite..So in of them I'm making a rose garden
Patricia P on May 21, 2020
Red color and read the reviews
Ina L on May 18, 2020
Love these!!!
Donna P on May 16, 2020
love red roses and the fullness of this kind of rose.
thank you
JEANNINE D on May 16, 2020
This is a hardy and disease resistant rose for my area
Yvette M on May 14, 2020
I love the double red knock out roses but they are so hard to find in my area and your price was more affordable than any other website.
Summer D on May 12, 2020
Pretty and tough
Diane P on May 11, 2020
MARY M on May 11, 2020
Love them. Usually buy them at nursery in Louisana, Missouri
Dale J on May 6, 2020
My husband of 48 years loves these double knockout roses! So for our 48th wedding anniversary this month I ordered him two more to go with the six that we already have growing in our yard!! They???re absolutely beautiful when they??? in full bloom!!
Mary on May 1, 2020
Filled out order. Enjoy Rose's in garden
Sheri S on May 8, 2021
I want to grow roses like my dad has in his garden.
Tracy M on May 4, 2021
Can you grow knockout roses in containers?
Lynda C on Apr 22, 2016
BEST ANSWER: Yes you can. I put 3 of my roses in large pots in case the ones that I planted
did not survive. They all lived through one of the coldest winters that we have had
and I found places for those 3 plants this year. The ones in the ground did grow larger but they all grew well.
Should I cut back my Double knockOut Roses for wintering over? How do I care for them to prepare them for winter?
Michele W on Oct 15, 2017
BEST ANSWER: Hi Michelle,
Yes cut them back to 18???-24??? inched November 1st or after freeze, mulch about 8??? with leaves. Don???t fertilize

Live in Scottsdale AZ . My location is a north wall of the house which in summer is full sun and winter no sun. As you can imagine--very hot in summer. Will these work for my application?
Craig C on Feb 28, 2020
BEST ANSWER: Your climate is much different than mine. My experience is southern Indiana and is with sandy soils. My plantings are on the south side of my house and they are in full sun. My experience is amazing. You would not think that with the plants that you will receive especially when you compare them to what you would get at a big box store. They will be small but will equal what you get at a big box in one season. I would think they would do well for you in your application as long as you keep them fed, watered and keep them treated with fungicide. These plants are much more economical unless you wait till clearance time at the big box stores. I will get about 3 bloom cycles in my area through the summer. I trim mine back after each bloom cycle to keep them looking good.
is may to late to plant knock out roses ?
barbara c on May 12, 2016
BEST ANSWER: It should be fine as long as you give it enough---not too much!---water. Mine are doing great and they got planted in a late summer heat wave last year.
will the double knock out roses do well in zone 10a ?
walter d on May 12, 2017
BEST ANSWER: You are right on the edge of the growing zone for Knock Outs. If you are near salt air, that will damage them, but if you can keep them out of hot late-afternoon sun and give them good air circulation, they should do OK.
Do knockout roses need to be cut back in the Fall?
Carol O on Nov 7, 2016
BEST ANSWER: We have never cut ours back and they are doing fine.
Will it grow in the shade? Garden faces North and receives just a bit of morning sun.
Danielle A on Mar 17, 2016
BEST ANSWER: Everyone that I know that has planted this particular rose, says they are very hardy regardless how you plant them. One guy even sprayed weed killer on his by accident, and they were still ok. Mine seem to prefer the full sun.
How many years do these last? My landscaper said, "Don't buy any. They only last 2 years." True? Or he is full of it??? LOL
susans on Aug 30, 2016
BEST ANSWER: They will last years. 9 years at our house so far. You can trim them in the fall the second year planted to eight inches or so. They grow quickly and are winter hardy.
How long does it take for these roses to get to their full size?
Ron H on May 12, 2016

I planted 18 of these roses last spring. All are thriving this spring with lots of buds. At one year in the ground the shortest is 25 inches the tallest 36 inches. None are quite as wide as they are tall. The growth will depend on quality of soil , moisture, and amount of sun. Mine got some bunny munching last spring and I had to use a hardware cloth wrap for protection. So, they lost some growth due to rabbits.
How big are these when I receive them ?
Iveng on Feb 20, 2016
BEST ANSWER: 12-18 inches. They grow very quickly and will bloom that year if you plant them in the spring. I strongly recommend!
I'm in the south if I plant them in the summer will they survive?
Tessa on Jun 4, 2016
BEST ANSWER: Yes, you can plant them any time. Just make sure you water them deeply every day for a while and then taper off to every other day, until they get established. A brief summer shower may not provide enough water to get deep into the root area.
How do these roses do in clay soils?
joyce b on May 19, 2019
BEST ANSWER: Mine grew nearly 3' the first year.
will this rose grow in a flower pot?
nancy r on Jun 4, 2016
BEST ANSWER: Ours did. It's a beauty.
if i order now will they flower this year ?
smiley on Apr 30, 2020
BEST ANSWER: Mine arrived only about 14-18" tall. I planted in my daughter house in Brooklyn, NY flower bed in late April. When I came back in mid August it was about 24" tall with flowers. 3 years later they are 4' and full of blooms. So has survived 3 ny Winters!
Is 6 hours of sun per day enough for knock out roses?
Elvin T on Apr 15, 2020
BEST ANSWER: We have a dozen red and yellow Knock Outs planted on the East side of our house and t
house and they get full sun for approximately 7 to 8 hours a day and they do wonderfully
It comes in a 4" pot is that a gallon?
Melissa C on Mar 30, 2019
BEST ANSWER: no< its a little more than a pint, plants are very hardy, mine a doing great
Does this rose have thorns?
Floyd on Oct 2, 2018
BEST ANSWER: Yes, this plant has thorns. However, the beauty of these double knockout rose plants outweigh the hassle of thorns...just wear very thick gardening gloves and you will be content.
Are these perennial?
Jordan on Sep 30, 2017
BEST ANSWER: To the best of my knowledge, all roses are perennial. These definitely are, as I have have mine for several years, and they are blooming right now.
Hi. Are these a true red or more of a pink? Thank you!
solange l on Feb 11, 2017
BEST ANSWER: Beautiful darker cherry red with blue undertones. My favorite of the Knockouts.
How long do they bloom?
Earl L on May 23, 2016
BEST ANSWER: I'm in Michigan and I would say they will start blooming in June and keep going through October ... Maybe November. It just depends on when we get our first frost. Defiantly will have blooms all summer
Can you grow your knockout roses in containers?
Danna Z on Apr 27, 2019
BEST ANSWER: I don't see why not; however, after they start to mature (in my case, less than a year, they become massive and far too large to effectively move (e.g. in from any excessively cold or hot, or unusually wet, weather). Mine are currently about 4' in diameter and were planted at about this time last year (2018). They were only about 6-8" in height, if that, so they *will* mature quickly especially when fed something like Miracle-Gro (which I do every other week) and the Scott's Rose and Bloom (which I do ever 3 months except in winter).

If you do decide to grow them in a container, keep in mind that they can easily grow to about 5-6' in diameter and will require a fairly large container. I'd guess somewhere in the neighborhood of at least a 2' diameter by 2' deep pot to accommodate the root system but even that might be unnecessarily constraining. If at all possible, I would highly recommend planting them in the soil and only doing the container method as a last resort.
Deer resistant or not?
Deborah M on May 31, 2018
BEST ANSWER: If they're hungry enough, deer may browse tender, unopened buds but will leave the shrub itself alone because of the thorns.
Is it thornless?
Jennie M on May 19, 2018
BEST ANSWER: No they are not thornless but very hardy and don't need the care the hybrid
tea roses need. They come back vigorously after bad winters.
Is this rose very fragrant?
Jaime W on Jan 30, 2017
BEST ANSWER: No. The Double Knock Out Rose has no fragrance. It is very hardy, blooms
early and is beautiful until frost even in the very hot weather in the south.
But no smell.
How far apart should I plant along fence line? I want a continuous hedge look w
Debra S on Jun 14, 2016
BEST ANSWER: Hello! I used my roses to make a hedge down both sides of the front garden.mine are about 30 inches apart. This is their second year - clearly a line but not a solid line. If planted closer , well the line would close in faster. I choose to wait, because I wanted big strong plants and gave each a chance to grow without competition

I live in Southeast Michigan. Is it too late for the knockout roses to fully bloom?
Linda O on Jun 11, 2016
BEST ANSWER: It is never too late to plant a flower. Actually, if it gets a good "hold" and even
doesn't get the full growth this year, it will next year. They will still bloom this year and be such a joy. I would go ahead and much luck to you.
Can I plant right away? Temp supposed to be cloudy tomorrow, and high of 85 with rain the next 5 days.
Meagan on May 22, 2019
BEST ANSWER: Thank you for your question. Because weather and soil conditions vary so much from year to year and even within your zone, it's best to think of your planting time as a range of favorable conditions instead of an exact time.

You can plant new plants and trees: 1) when the ground is not frozen, 2) when daytime temperatures are above freezing (32??F) and below 90??F, and 3) when extreme weather (blizzard, hail, torrential rain, etc.) is not in the forecast. Be sure to keep plants watered if you're transplanting in warm and/or dry weather.
Do deer like these roses?
Elaine M on May 27, 2018
BEST ANSWER: Deer may eat the tender unopened buds if they're really hungry, but they generally don't like messing with thorns and will look for something else to eat before roses.
What typeof rose is a Knock out rose?
Debbie on Mar 21, 2018
BEST ANSWER: It is a hardy disease resistant fast growing rose that blooms almost all the time. The double knock outs are beautiful. They grow in almost any soil.
Does this rose form pretty rose hips through winter?
Jaime W on Jan 30, 2017
BEST ANSWER: All of The Knock Out?? Roses will produce hips in small numbers, but unlike some other roses, they quite as alluring. The flowers are the main attraction of Knock Outs.

Customer Reviews

4.5 / 5.0
76 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Alive and healthy, well packaged
I've purchased bare root roses, including Knockout, online and gallon containers at the big box stores. I was intrigued by the pricing for these live, shipped Knockout roses. It's a great value for live roses. I understood that these were being shipped in 4" containers, but the Q&A for this product indicates in several responses that these plants would be delivered as 12 - 18" specimens. All four of those I ordered are under 5" tall. They are absolutely actively growing and by all appearances, extremely healthy plants though. Just in case anyone else is confused about the size of the product delivered, apparently it varies. Mine are tiny plants which, once planted, will likely not be visible through most of this growing season.
April 29, 2016
over 5 years ago
Not as healthy as previous purchase of Double Knock Out Roses
I ordered 8 roses recently, but they arrived a little unhealthy. The leaves were a little yellowed, and the plants looked somewhat wilted. After planting them they got off to a slow start. They are growing, but one is very iffy, as it still shows signs of stress. The roses I ordered prior to these were healthy and vigorous, so beautiful. Trying to nurse the new ones back to health.
May 5, 2016
over 5 years ago
Double Knock Out Rose
I bought five plants one year ago. They were very small-4-6 inches and I was skeptical. One year later they are 2-3 feet high and loaded with roses and beautiful. Very pleased with these plants.
May 23, 2016
over 6 years ago
Easy Beautiful Roses
Double knock out red roses have been growing in my NC south facing yard for a year. They were about 3 feet tall at the end of last summer and after a winter trimming are now in mid-May back to 3 1/2 feet tall, with more growth to come through the summer. Continuous bloom. Deadheading is not necessary, but helps with appearance on occasion. Spraying not needed at all, as no disease attacks these plants. They love the heat and humidity and now that they are established, need minimal watering only during periods of drought. Neighbors appreciate their beauty!
May 21, 2016
over 6 years ago
Beautiful, but did not last
When I received this, it was gorgeous. I followed the directions. It lasted one season, but it died. I didn't contact you because it was over one year-past the one year warranty.
May 17, 2016
over 6 years ago
Beautiful easy to grow rose
After ordering six Knockout Roses last year I decided to try a few more. They are the easiest and most beautiful roses I've ever grown. After only one season six of them are about 3' in diameter and covered with gorgeous red roses. I would highly recommend them.
May 22, 2016
over 6 years ago
Doing great the second go around.
I ordered 10 of these and planted them in the fall of 2014. Come spring I lost 6 plants and had to order more. I guess they weren't established well enough. Last year I fertilized and set up a irrigation system. So far they are about 3-ft high and starting to spread out after a early spring pruning. They have buds on them now so I'm looking forward to seeing this years blooms and growth. I planted these as a hedge with 3ft spacing
May 17, 2016
over 6 years ago
My Red and Pink Double Knockout Roses
My wife and I moved west from Cincinnati, Ohio early in 2016 and purchased an 1859 house which was seated on an 8-foot wall and 6-foot incline overloking the street below. Having had great success with Stark Brothers' Double Knockout Roses in Cincinnati, and not wishing to risk injury by trying to mow that strip of grass above our rock wall, I purchased 15 Stark double knockout rose bushes, removed the grass and planted them on the slope. Needless to say, all bushes survived the winter and are flourishing and covered with a profusion of pink and red blooms. I would recommend Stark Brothers' double knockout roses to anyone for both their beauty and hardiness. They are a beautiful beacon of color on our hilltop house!
June 20, 2017
over 5 years ago
Much more than I could have hoped for.
I wanted color that would be constant for a very large flower bed and decided to use the Knock Out Rose to accomplish that. The plants were small when I got them but 3 were already blooming. The color was amazing. Strangers would stop and tell me the bed was beautiful. I need to say that it was the 1st. year and the bushes were hip high. They really are amazing and I love them.
May 12, 2016
over 6 years ago
Double Knock Out Rose
Got this for my mother and she loves it. Even though her flowerbeds are very shady, it's still doing quite well and blooms a lot.
May 6, 2016
over 7 years ago