White Knock Out® Rose

$15.99
Each
4" Potted.
Item #24899
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Description

Pure white blooms that pop against dark foliage. This compact landscape shrub produces 3-3½" flowers with yellow centers and a lovely citrus fragrance. Dark green and burgundy foliage. Drought-tolerant. Reaches 3-4' tall and wide. Blooms in spring through fall (for up to nine months). May be covered by USPP #20,273 or other patents. This patented variety is sold under license from the patent owner. RADwhite cultivar

Survival Guaranteed!

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 send you a free one-time replacement, with a nominal shipping fee of $9.99. If the item in question is not available, we can issue a one-time credit to your account equaling the original product purchase price or issue you a refund. Read more about our warranty policy.

Characteristics

Bloom Color White
Hardiness Zone Range 4 - 10
Shade/Sun Full Sun
Soil Composition Loamy
Soil Moisture Well Drained
Soil pH Level 5.5 - 7.0

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.

Zone Compatibility

This Variety's Zone Range 4 - 10
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 compatibility range of this variety before ordering.

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.

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Questions & Answers

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25 Questions
Why did you choose this?

Lovely in it's simpli.

Visual Sweetness.

need a white rose

to replace old plant that died

is this a cherokee rose? Is it toxic for dogs?

Fortunately, according to the American Society for the Prevention of Cruelty to Animals, rose plants are non-toxic to cats, dogs, and horses. Since Knock Out rose varieties are specific breeds of those regular roses, you can rest assured that they too are non-toxic.

No this is not a cherokee rose.

How large is this knock out white rose plant when I receive it?

The roses are approximately 4-6" when shipped.

does this rose have a fragrance? Do any of the knockout roses have rose fragrance?

We appreciate you reaching out to us. Yes these have a fragrance.

If you have any further questions please don't hesitate to reach back out to us. Have a great day!

Is there a white double knock-out rose?

Yes there is. We have one and it loads up with beautiful white roses all summer and even into fall.

Can you use them as potted plants ?

I am in the process of moving to a new place. I did pot up my roses the season before I set them in the ground. They did fine, and bloomed beautifully in their new space. That was my experience. I really don't know for sure how they would do potted up long term. I would guess, given the right soil, space, etc., they would do fine. They seem to be pretty hardy.

Is the white knock out black spot resistant?

I have had no black spot on this rose, but I live in a very dry climate which would prevent black spot formation. If you live in a damp, humid climate, black spot might be a possibility. So far, this is a nice, healthy rose here in southeastern AZ!

Genus and species??

Genus: Rosa
Species: spp.
Cultivar: Radwhite

is this variety rugosa? and do they make rosahips

Genus: Rosa
Species: spp.
Cultivar: Radwhite

No, the White Knock Out® Rose does not typically produce rosehips. Like other Knock Out® roses, it is bred for continuous blooming and self-cleaning flowers, meaning it does not set hips reliably. The plant focuses on producing more blooms rather than developing seeds.

how do I pay for these? I want to use a credit card.

Add this item to your cart and select check out and enter in your payment information or you may call us at 800.326.4180 and we will be happy to place the order for you over the phone.

What would be a polinator for northern spy Apple tree?

You may find recommended pollinators on the product page, we suggest the Gold rush, the Golden delicious or the Red delicious. You may choose any other late season bloomer for proper pollination.

Customer Reviews

43 Ratings
4.3out of 5 stars
43 Ratings

Rated 5 stars by 63% of reviewers

Rated 4 stars by 16% of reviewers

Rated 3 stars by 9% of reviewers

Rated 2 stars by 7% of reviewers

Rated 1 star by 5% of reviewers

1-10 of 43 Reviews
Rated 5 out of 5
Apr 20, 2025
White Knock Out Rose in bloom
My white knockout rose blooming in pure elegance this Easter Day.
Rated 5 out of 5
Mar 3, 2024
Nice hardy rose.
I planted these after having them in a pot for the first season. They look very healthy and bloomed nicely last year.
Rated 5 out of 5
Jul 9, 2023
rose
Beautiful rose! I love the knockout line of roses. They are very fuss free and tolerant of my neglect. Long lasting blooms. Pretty
Rated 5 out of 5
Jun 13, 2023
White Eye Catchers
Beautiful blossoms appeared shortly after first few rains. These plants are definitely eye catching with brilliant white blooms.
Rated 5 out of 5
May 25, 2023
Pretty Rose
Comes as a small bush but growing well and has bloomed.
Rated 5 out of 5
Sep 11, 2022
Great Rose
I live in Grand Forks, ND. The White Knockout is powerhouse bloomer for me. It is perfectly hardy; not just root hardy, cane hardy. Mine have been through three North Dakota winters with no winter damage. (in my experience, it is the hardiest of the Knockouts, along with the Peachy, another dandy for me). I love the White Knockout rose.

(my other champion, surefire, non-stop bloomer is "Campfire", a Canadian introduction)
Rated 5 out of 5
Aug 3, 2022
Eye-catching Beauties
My white Knock Out Roses began blooming three weeks after planting and have not stopped yet! They are beautiful and an eye-catching addition to my front landscaping. Thanks Stark Brothers for beautifying my lava rock garden area!
Rated 5 out of 5
May 17, 2020
Lovely!
I already knew that I love knockout roses, so I had to have some whites to go with the others. They came in an the small side, but in perfect shape and immediately started giving me blooms. They're growing by leaps and bounds and are so pretty! Once again, Stark Brothers has given me exactly what I wanted!
Rated 5 out of 5
May 13, 2019
Pleased with the purchase
They didn't look like much when they arrived, but they grew considerably, and had several flowers for a first year. I'd recommend them.
Rated 5 out of 5
May 12, 2019
Hearty and beautiful
I planted 4 of these exactly a year ago. All 4 quadrupled in size. Each plant has a hundred blooms or more.