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  • Sunny Knock Out® Rose Tree for Sale

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Sunny Knock Out® Rose Tree

Rosa 'RADsunny'

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Growing Zones: 5-10
(hardy down to -10℉)

Growing Zones 5-10
You are in Growing Zone: 6

Mature Height:

3-4 ft.

Mature Width:

3-4 ft.


Full Sun


4-5 ft.

Growth Rate:


Drought Tolerance:


Botanical Name:

Rosa 'RADsunny'

Does Not Ship To:


Summer is Brighter with these Vibrant, Low-Maintenance Blooms

- Months of Vibrant, Colorful Roses
- Drought tolerant
- Easy to Grow
- Adapts to many soils and climates
- Low maintenance

Amazing Style
You can't go wrong with the new Sunny Knock Out® Rose Tree in your landscape or flower garden!  This tree has all the qualities that have made the Knock Out® series of roses the #1 choice of homeowners and landscapers across the country. You'll get amazing yellow blooms for 9 months!

From April until frost, this tree will provide beautiful full yellow blooms.

Low Maintenance
A significantly tough rose tree.  It is very low maintenance and extremely adaptable to many regions and soils.  It does well in Zones 5-10. Be sure to give your Sunny Yellow Knock Out® Rose Tree full sun and good drainage. It will thrive on its own with little attention once established - and will sail through dry weather quite nicely when in the ground. If you're growing in a container, you'll want to water it regularly.  (No worries, we provide easy to follow instructions.)

The compact size and naturally rounded shape of this Sunny Knock Out® Rose Tree makes it a perfect fit for any spot in your yard - or on your porch or patio. Masses of bright yellow blooms provide breathtaking natural beauty -  whether planted in the ground or in a container.

Established Roots for Fast Growth
Roses initially grow rather slowly, so for instant beauty and an easy transition to your yard or container, it's essential that you purchase a plant with an established root system. That's what we offer.  You'll soon be rewarded with months of colorful blooms. You'll enjoy an instant impact for your yard and garden rather than waiting years to see results.  Easy to own, there is no need to clip your Sunny Knock Out® Rose Tree to shape it. Watch our video on why we don't ship Bare Root. (Your rose tree has been nurtured and will be delivered healthy and ready to perform.)

We prune your Knock Out® Roses before we ship them out to give you an explosion of growth when you receive them.  Order Now.

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Customer Reviews

4.7 / 5.0
23 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Beautiful when fully blooming
I needed a little something for a fairly stark rock bed and the knock out rose trees were the perfect choice. They came well packaged and arrived quickly with easy planting instructions. I hope they survive the summer heat, as it is clear they prefer slightly more gentle temps than the triple digits we had this week. But then, who doesn't?
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June 23, 2018
5 months ago
Growing Zone:
June 19, 2018
4 months ago
Growing Zone:
It's doing great
After a month from planting, it looks great and blooming like crazy! Would certainly recommend buying through this vender. Thank you!
It's doing great
It's doing great
June 15, 2018
5 months ago
Super roses
Ordered 2 of each color knockout. The yellow came with some blooms which were gorgeous. Great shipping and packaging of the plants as well.
June 9, 2018
Growing Zone:
The product came quickly and in good condition. We just got it planted so hopefully it will stay healthy and in good shape.
May 20, 2018
6 months ago
Growing Zone:
Time will tell
I got a few blooms on it. Not like the picture but its is early yet and we just planted it. Overall its doing well so I am optimistic.
May 18, 2018
Detroit, MI
7 months ago
Growing Zone:
Great specimen focal point
Second year in ground here in TN. Great specimen piece. Lots of blooms over and over. Soft yellow color.
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Added May 14, 2018
May 14, 2018
1 year ago
Growing Zone:
Very pleased!!!
I couldnt be more pleased!!! I ordered this tree to be delivered to my mom for mothers day gift. It arrived in healthy condition with blooms & buds on it. Mom was so happy!!
User submitted image
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May 3, 2018
5 months ago
Growing Zone:
Fabulous Standard Roses
I ordered many rose trees from Fast-Growing in the Spring. They have been a delight and are healthy and happy and have totally enhanced my rose garden. I hope they winter well!
August 18, 2017
1 year ago
Growing Zone:
It is very nice. I have not transplanted but hope to this week.
June 20, 2017
1 year ago

Planting & Care

It's Easy to Plant & Care for Your Sunny Knock Out® Rose Tree

Sunny Knock Out® Rose Tree Planting Diretions

A Knockout Rose tree is an ideal landscape tree where the desirability of the classic rose form can be incorporated into a structural arrangement with the benefit of that of a common tree. The Knockout Rose tree is an upright tree which forms a tidy mound 3 to 4 feet high from the base and blooms from June until the first hard frost. Knockout Rose trees and Knockout Rose shrubs complement each other well when planted together.

Knockout Rose trees look best planted in groups of three or more and can be planted to form low rise hedges. They also make for good feature trees when planted alongside Double Knockout Roses. Last year alone, some 3 ½ million Knockout Rose trees (of which many were Double Knockout Roses) were sold making them a very popular choice amongst gardeners.

Seasonal information: They are upright shrubs that form a tidy mound 3 to 4 feet high and bloom from June to the first hard frost. In spring, trim any broken or dead branches. You can shape the Knockout rose at this time. In zones with cold, wet winters, give your Knockout rose winter protection by planting on the leeward side of buildings or walls. Or you can wrap snow fencing loosely around the rose and cover with straw.

Location: Select a well-drained site in full to partial sun. If you choose partial sun make sure your roses receive at least six hours of direct sun a day (afternoon shade is better than morning shade). If you have clay or sandy soil, work well-rotted manure or compost into the planting site.

Planting instructions: Space three feet apart if planting multiple trees.
1) You should start by digging a hole twice as wide and twice as deep as the root ball.
2) Mix the manure or compost with the soil you have removed.
3) Back fill the soil until you have a hole the same size or slightly larger than the container the rose is in.
4) Plant the rose at the same depth as it is in the container. 
5) Mulch around the base of the tree to keep competing weeds and grasses from growing.

Watering: Keep Knockout Roses moist at all times. Water around the roots rather than overhead. Mulching will greatly assist with soil moisture retention.

Fertilization: Fertilize with an organic rose fertilizer once a month. Use organic fertilizer rather than synthetic fertilizers as synthetics can promote weak growth and your rose will have more foliage and less flowers. Even though Double Knockout roses are disease-resistant, they still need adequate air circulation, created by properly spacing plants.

Pests and Disease: Knockout roses are resistant to rust, black spot and powdery mildew. 

Pruning: Avoid pruning the Knockout roses at all in the first 2 to 3 years. Sterilize your sharp pruning shears with hot water or rubbing alcohol. This guarantees a cleaner, healthier cut. Always prune at an angle and not straight across. Activate the Knockout into growth and blooming by pruning it back a little in the spring after the last hard freeze. Keep the rose under control or if you want it smaller than it's 3-feet wide by 4-inches tall size by pruning it back in the late summer or early fall. Remove dead or old canes at any time. Also cut very thin canes that might be coming up from the ground. Prune your mature plants by using the 1/3 rule each year in the spring. Remove 1/3 of the oldest canes and any stems that are damaged, diseased or dead.

Planting & Care

Questions & Answers

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Browse 11 questions Browse 11 questions and 70 answers
Why did you choose this? Store
Perfect size for my space. Love all your products and order from you frequently.
Constance H on Aug 27, 2018
We got our mother one these trees many years ago . She love it! And a storm came through serval months ago destroy it . Haven’t been able to find her one to replace it no where ! No one carries them anymore . So I went online and found y’all ! Yay
wanda j on Jul 16, 2018
Perfect size for my space. Love all your products and order from you frequently.
Constance H on Aug 27, 2018
In Memory of her Father
Tonimarie F on Jul 23, 2018
We got our mother one these trees many years ago . She love it! And a storm came through serval months ago destroy it . Haven’t been able to find her one to replace it no where ! No one carries them anymore . So I went online and found y’all ! Yay
wanda j on Jul 16, 2018
Wedding color so it is meaningful to us!
Garrett H on Jun 12, 2018
Tree type, easier to maintain then rose bushes. Excellent price,
joan v on Jun 10, 2018
Love the color yellow. Brings color and brightness to yard.
Korin P on Jun 9, 2018
Tara G on May 25, 2018
Because of color of rose beautiful
Brenda S on May 22, 2018
Easy to care for.
Tamara H on May 21, 2018
In memory of a dear friend's beautiful mother
dana m on May 21, 2018
I have ordered this rose tree before and it is so pretty and blooms constantly throughout the summer.
Debby O on May 16, 2018
It goes with our house exterior and patio
Paul L on May 14, 2018
Mother's day gift.
Cassie R on May 5, 2018
Mom loves roses & her mothers favorite rose was yellow. What a great mothers day gift!!
evonne S on Apr 25, 2018
Looking for a decorative flowering tree to replace my front yard azalea that did not make it through the winter freeze.
Jana M on Apr 23, 2018
Sympathy Gift
Fran S on Mar 28, 2018
I could picture this on my Mom's patio, just like the photo. Bought it as a gift.
Dona M on Mar 12, 2018
Think it’ll look stunning in the front yard...and yellow roses are just too pretty to pass on!
Sumyr D on Mar 4, 2018
She was from Texas
Mike & Family L on Dec 17, 2017
A memorial plant for a widow friend. Not sure if she's staying in her house, so good option to be able to plant or not.
Jane G on Aug 25, 2017
Color and height and type
Elizabeth W on Aug 8, 2017
Amy W on Aug 3, 2017
Because it would beautifully highlight the yard & patio area. Making one's yard look & seem...but truly be much more, some thing out of a Masterful work of art like a Renoir or a Matisse oil painting!!! Wow, a double Knock
out it reminds me of Rocky II , when Apollo & Rocky were both knocked out & Rocky was slowly crawling up the robes!!
That truly was a double knock out
....except like this tree, Rocky goes on too Win!!! Cool, O.K...Pauly I'll call you back later
Eric A on Jul 30, 2017
love the tree
john c on Jul 27, 2017
It's very beautiful flower
Ashley S on Jun 29, 2017
I chose this for my mother Maureen and had it sent to her for her birthday. She lives in a different state than me.
Maureen C on Jun 28, 2017
I wanted a rose tree in front of my window to replace a bush
Debby O on Jun 22, 2017
A good friends daughter passed away, her middle name was Rose, her favorite color was yellow. As a memorial to her daughter I picked this to plant in her mothers garden.
Shirley I on Jun 17, 2017
A great garden entry way plant.
nicholas a on Jun 12, 2017
Loved my others that were just delivered yesterday!
Nick P on Jun 7, 2017
For the color and container grown
Donald R on Jun 7, 2017
where is my free shipping?
kenneth g on May 26, 2017
Size and easy to take care of
Pam h on Apr 29, 2017
Beautiful Easter color. Will look great in my backyard and add some of God's peacefulness. Very calming color.
Kathie V on Apr 17, 2017
Planted in front of my front porch to add a splash of color drawing the eyes up to the front door.
Melissa W on Apr 16, 2017
Strong and beautiful
Michele F on Mar 23, 2017
To mark our new home. My wife planted the both on the same day one is going well but the other one is still alive but just barely. I have pictures of them if you would like them.
Robert on Sep 24, 2016
Sympathy gift
Nancy V on Aug 13, 2016
I hope that it brightens Patty's days for years to come. She just went through cancer surgery.
Patricia H on Aug 10, 2016
I just love the rose tree
Bogdan Denis A on Aug 9, 2016
I love the quality of your plants
maria r on Jul 24, 2016
To honor the passing of a loved one.
Eileen C on Jun 29, 2016
This tree was sent to remember their mom who just passed.
Barry and Marie B on Jun 21, 2016
color & size
Loredana D on Jun 20, 2016
Was looking for a small Dwarf tree and love this size and color
Robin G on Apr 18, 2016
durable plant for spring and summer in back yard planters
elin n on Apr 17, 2016
low maintenence and pretty display.
Ron B on Apr 14, 2016
Unique and beautiful!
Stacey R on Apr 3, 2016
Received one in memory of our loss of our son. Gift to a retired veteran in memory of her loss of her brother.
Carolina and Bobby P on Mar 22, 2016
Wanted a flowering plant for me screened in porch.
Lisa P on Feb 14, 2016
In Memory of her Father
Tonimarie F on Jul 23, 2018
Wedding color so it is meaningful to us!
Garrett H on Jun 12, 2018
what is the best pot size for knock out rose trees? I plan to keep it in the container year-round in zone 5.
Michael on Mar 21, 2015
BEST ANSWER: I planted this in a 15in deep urn style plantar recently and it's growing strong.
does the yellow rose stay yellow or does it turn white?
Jim D on Mar 21, 2016
BEST ANSWER: It blooms yellow but turns more white a few days after opening. This is, by the way, one of the most prolific bloomers I have ever seen. My roses stay in bloom all summer into mid-fall.
Does the rose brush attract bees?
Cynthia M on Mar 30, 2015
BEST ANSWER: No. Knock Out rose, do not have an intense fragrance and less nectar than other flowers. They also restricts access to the inner flower were the pollen is stored.
I live in zone 5. What time of year is best for planting this tree?
w p on Aug 13, 2018
BEST ANSWER: I would call Fast-Growing Trees that sell the Knock Out Roses - they would provide the best answer for your time zone hours 9:00 a.m. to 5:30 p.m. EST. Not allowed to enter phone numbers, even business phone numbers - you can go online and look up Fast-Growing Trees for information. They are very helpful with information, care etc. with the Knock Out Roses. We planted ours in the month of June
does this need pruning or do the dead leaves fall off on their own like the pink knock out tree?
Karen W on Jul 6, 2015
BEST ANSWER: Karen, all three of the rose trees that we purchased are doing great and the only thing I do is to cut the dead roses off when they have completed their bloom cycle, during the winter time they do gradually loose they leaves but in the early spring they have come back with a much fuller tree and more roses. I hope that this helps you and I plan on buying more because I love them.
Can you plant this tree in a pot?
Ken F on Apr 25, 2017
BEST ANSWER: The pot needs to be much bigger than the roots. You'd have to overwinter it in a shed or garage.
What does this look like in the winter? Does it have leaves all year long or is it bare in the winter?
Steve B on Aug 18, 2014
BEST ANSWER: It is bare in the winter!
Can this be planted in the ground, and does it come in different colors? Thanks, Terri
F O on Sep 5, 2016
BEST ANSWER: The outdoor growing zones are 5-10. Click the link to look up what growing zone you are in.
We also have them in Red and Pink.
Why do my bushes have some yellow leaves on the bottom of the bushes?
June H on Jul 26, 2016
BEST ANSWER: Too much water, lack of nutrients, hot and cold weather changes can cause yellowing of leaves. It could also be the normal cycle of life. If the foliage get to thick then then leaves will fall off to promote a better air flow.
If knock out rose tree is in a container, can it be brought inside to a garage for winters in Illinois or Oregon?
Barbara S on May 27, 2016
BEST ANSWER: Yes you can bring it indoors.

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Estimated Shipping Time: Most orders ship immediately, however some orders may ship in 1-2 business days (we do not ship on the weekends) from date of purchase. As noted on the website, some items are seasonal, and may only ship in spring or fall. Once your order is shipped, you'll receive an email with a tracking number.

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