Red Knock Out® Rose

As low as $49.79 was $59.99
Availability: In stock

Red Knock Out® Rose (Rosa 'Radrazz') is a remarkably hardy shrub that produces amazing red Roses. One would look spectacular by your front door, or plant several along a patio or perennial bed for a long-lasting blast of color. Your Red Knock Out ® Rose will be an ever-producing, long-lasting explosion of color for your yard. Once you plant this exceptional Rose variety you'll enjoy sumptuous floral brilliance every year from May until the first frost!

Every single bloom is a stunning cherry red with a diameter of up to 5 inches, and a soft, Tea Rose scent. The Roses continually bloom, but even if there's a slight pause, you'll enjoy how the new leaves begin their lives with a reddish tint, later transitioning to dark green. When autumn arrives the foliage changes once again to a deep purple shade. For winter, the orange hips will seem to pop out amid the dreary landscape like tiny ornaments amid the dark branches.

The brilliant red flowering Knock Out® Rose comes alive with more cherry red than green. Its blooms offer a luxurious display on a low-maintenance plant. You can pick them for a whole anniversary party, fill table bouquets and vases all season and still have plenty left to enjoy on the plant. Much to the pleasure of your pollinators that arrive to check out your blooms!

It has excellent hardiness and disease resistance so doesn't always need the fungicide treatments that many other Roses do, and is generally maintenance-free. It's even drought-tolerant and only requires three hours of sunshine a day for its bloom (unlike many other Rose varieties). Hardy throughout USDA growing zones 4 through 9 and grow to a modest 2-3 feet in height, but spread a nice 3-4 feet in width!

Planting and Application:

It's that rare variety of Rose that you can plant and enjoy without a lot of fuss. The tidy spread of this long-blooming Shrub Rose makes it as perfect as a Groundcover Rose for flowering ornamental 'living mulch' between larger shrubs and as edging along pathways and the edges of garden beds.

No property? No problem! Plant them in a pot, and use Knock Out® to decorate your sun-drenched balcony or porch. Just give yourself and your guests some "wiggle room" to move past it, as those thorns are no joke! Larger planters and year-round porch pots will add long-lasting blooms to your patio and even balconies! The butterflies will adore the blossoms and stop by for a visit.

Use in lower water-use gardens, as Firewise landscaping buffer zones, and watch as that hell strip lights up with color and charm! Imagine several of them planted together for a big impact! These plants make excellent additions to foundation plantings. Plant them two feet apart on center to create low hedges that grow together. 

Add a single specimen to your cottage and perennial beds and borders, or accent your home's front steps, mailbox, or near driveways to welcome you home! Use a pair flanking on either side of your front door, or create interest with grouped accents and as anchors planted at the corners of your home.

Or, use multiple rows planted in a staggered zigzagging pattern to fill a wide, open area. You'll appreciate how easy-care your new mass planting spectacle is when you fill large areas in profuse red blooms! Go for the gusto and mix and match with other double and single Knock Out® Roses for a rainbow display!

Sometimes Knock Out® Roses form orange Rose Hips in the autumn and look great as winter décor and as winter interest. Birds love these showy Hips and they can be made into tea and preserves.

  • Vivid Red, Long-Lasting Blossoms
  • Wider Than Tall Mounds of Green Foliage
  • Very Easy Care & Low Maintenance
  • Award-Winning First Knock Out® Rose
  • Winter Interest, Specimens, Container Accents & En Masse

#ProPlantTips for Care:

For the best performance, Roses needs full sun, good air circulation and well-drained soil. Enjoy their engaging red flowers and small green leaves for many years! Plant Shrub Roses in a location with good air circulation and provide regular, moderate moisture access. All plants enjoy a topdressing of 3-4 inches of arborist mulch. These Roses are disease-resistant to black spot and powdery mildew, and also adapt to a variety of conditions.

If you wish to give them a trim, pruning is best done in early spring if needed. Read all you need about Rose pruning here, and about winterizing Roses, and un-wintering Roses inspiring in our #ProPlantTips Garden Blog!

  • Full Sun
  • Moderate Moisture & Well-Drained Enriched Soil
  • Self-Cleaning, No Deadheading Required
  • Prune Early Spring
  • Widely Adaptable - Tolerates Salt for Coastal Conditions & Street Plantings
  • Modern Cultivar has Excellent Disease & Deer Resistance

The Red Knock Out® Rose bush is the first of the famous line of Knock Out® Roses and a multiple award winner for its exceptional qualities so you know it will perform beautifully in your landscape as well! It's sure to be a winner with you as well! Order this groundbreaking flowering shrub at NatureHillscom today!

Knock Out® Rose Bush Frequently Asked Questions

What is the difference between a Knockout Rose and a Double Knockout Rose?

The main difference between these two varieties of Shrub Rose is that the Double obviously has double the petal count compared to the more 'wild rose' look of the original Knock Out® Roses.

Is it OK to plant Knockout Roses?

The Knock Out Roses are fantastic flowering shrubs that feature ease of care, disease resistance, and fuss-free growth regardless of where you plant them in the country! Nature Hills uses Plant Sentry™ to ensure any plant material entering your area will be free and clear of any disease or pest issues that could potentially become an invasive issue.

What colors do Knock Out Roses come in?

Knock Out Roses come in a huge range of color options! From pink both light and dark, to reds, white, yellow and peachy apricots, you'll enjoy a vast array of hues to accent your gardens!

Do Knockout Roses come back every year?

Knock Out Roses are incredible Rose shrubs that come back year after year, only getting bigger and better! Cold and heat tolerant in USDA hardiness zones 5 through 10, these are reliable and adaptable shrubs!

What Shipping Options Do You Offer? works closely with our growers and nursery professionals to ensure we ship when it is most appropriate for your area. Our goal is to deliver the hardiest plants by avoiding extreme high and low temperatures. Check out our shipping schedule for more information and to learn our wills and won'ts when it comes to shipping plants, trees and shrubs. Find your Red Knock Out® Rose bush for sale here at!

Buying Options for Plants

Nature Hills sells a large variety of plants with several options available. Plants are offered in both potted containers and as dormant bare root without soil. Here is a helpful resource to understand your options as you create a beautiful landscape with help from Nature Hills.

Ever wonder what a larger plant will mean for your landscape? Container Sizes are really all about the age of the plant!

Seasonally, Nature Hills offers hand selected, high quality bare root trees, shrubs and perennials. Bare root plants are sold by height from the top of the root system to the top of the plant. Plants may be taller than the height minimums.

  • Popular sizes of select trees are 1 foot, 2 feet, 3 feet, etc.
  • Popular sizes of select bare root plants is 1 foot, 18 inches, etc.

Nature Hills Container Size by Volume

Keep in mind, specific varieties and different growing conditions can affect the rate at which plants grow. Variations in size may occur.

Young Plants to 18 Months
Size Volume
2"x2"x3" Ranges from .18 to .21 dry quarts / .198 to .23 dry liters in volume
4.5" Container Equal to .65 dry quart / .72 dry liter in volume
Sprinter Pot Equal to .63 dry quart / .69 dry liter in volume
4" Container Ranges from .31 to .87 / .35 to .96 dry liter in volume
6" Container Equal to 1.4 dry quarts / 1.59 dry liters in volume
1 Quart Equal to 1 dry quart / 1.1 dry liter in volume
5.5" Container Equal to 1.89 of a dry quart / 2.08 dry liters in volume
4"x4"x5" Ranges from .8 to 1.1 dry quarts / .88 to 1.2 dry liters in volume
4"x4"x6" Ranges from 1.0 to 1.3 dry quarts / 1.1 to 1.41 dry liters in volume
4"x4"x9" Ranges from 1.1 to 2.1 dry quarts / 1.2 to 2.3 dry liters in volume
4"x4"x10" Ranges from 1.7 to 2.3 dry quart / 1.87 to 2.53 dry liters in volume
Plants 18 Months - 2.5 Years Old
Size Volume
2 Quart Equal to 2 dry quarts / 2.2 dry liters in volume
#1 Container Ranges from 2.26 to 3.73 dry quarts / 2.49 to 4.11 dry liters in volume
5"x5"x12" Equal to 3.5 to 4.3 dry quarts / 3.85 to 4.74 dry liters in volume
Plants 2 - 4 Years Old
Size Volume
#2 Container Ranges from 1.19 to 1.76 dry gallons / 5.24 to 7.75 dry liters in volume
#3 Container Ranges from 2.32 to 2.76 dry gallons / 10.22 to 12.16 dry liters in volume
Plants 3 - 5 Years Old
Size Volume
#5 Container Ranges from 2.92 to 4.62 dry gallons / 12.86 to 20.35 dry liters in volume
#6 Container Ranges from 5.25 to 6.01 dry gallons / 23.12 to 26.42 dry liters in volume
#7 Container Ranges from 5.98 to 6.08 dry gallons / 26.34 to 26.78 dry liters in volume

About Plant Sentry™

Plant Sentry is designed to protect both consumers and the nursery trade from invasive plant pests and diseases. Sites that display the Plant Sentry protection badge are protected from consumers buying and nurseries shipping material carrying invasive pests and diseases.

This proprietary eCommerce software prevents the shipment of a restricted plant to each state. The Plant Sentry system includes a shipment certification program. The Plant Sentry Compliance Officer works closely with and each nursery or fulfillment center to ensure only compliant plants are sold to customers.

Click Here to learn more

Plant Sentry


To obtain a more accurate shipment time-frame, simply enter your zip code in the “Find Your Growing Zone” box to the right. Our plants are grown all over the country and lead time on items may be different because of this. Once your order is placed, you will also receive the specific shipment time-frame information as part of your order confirmation. Once an item ships, you will receive shipment notification and tracking numbers, so you can follow along while your plant travels to your doorstep. We use FedEx, UPS, or USPS at our discretion.

Due to winter weather we have put a hold on shipping to the areas shown below in grey. You can still order now and we will ship the plant to you during an appropriate time for your zone.

*If you have found your zone already, it will be highlighted in the table below.
Color Zone Times
3 Spring 2019
4 Now
5 Now
6 Now
7 Now
8 Now
9 Now
10 Now
11 Now

Shipping Rates

At Nature Hills we handle, package and ship the products you order with the utmost care to ensure healthy delivery. Shipping and handling charges are calculated based on the tables below. Please note that some items include an additional handling surcharge, these will be noted on the item's product page.

From To S&H
0 - 19.99 24.99
20 - 49.99 29.99
50 - 69.99 34.99
70 - 99.99 39.99
100 - 129.99 44.99
130 - 149.99 48.99
150 - 150+ Approx 28%

Click here to see our full rates


Red Knock Out® Rose Is Suited to Grow in Zones 4-9
Growing Zones 4-9
More Information
Brand Knock Out
Botanical Name Rosa 'Radrazz'
Type Deciduous
Mature Height 2 - 3 feet
Mature Spread 3 - 4 feet
Sun Exposure Full Sun
Soil Well Drained
Moisture Moderate
Growth Rate Medium
Foliage Color Green
Pollinator Friendly Yes
Pruning Time Early Spring
Fragrant Yes
Photos courtesy of Star Roses and Plants -