When it comes to high-performing, reliable roses, the Knock Out® series takes the cake! The Red Double Knock Out® Rose (Rosa 'RADtko') is no different. This easy-to-maintain Rose bush ignites the yard with more blooms than you can count. And it's known for its repeat performance of wave after wave of bursting red blooms from late spring until the first frost!
The red flowering Double Knock Out® Rose Shrub is more exciting than any photos online can depict. When it blooms, it comes alive with more cherry-red than green. Its double blooms offer a luxurious display on a low-maintenance plant. You can pick them for a whole bridal party and the table centerpieces and still have plenty left to enjoy on the plant. The few times you’ll see these not in bloom, you’ll still enjoy the glossy green leaves!
Enjoy flowers until autumn, and once the frost hits, you can still enjoy the Knock Out® Rose's showy orange Rose hips while looking forward to its attractive violet-hued fall foliage! You can use the blooms in bouquets and if you've left any to turn into hips, enjoy colorful dried bouquets.
The Red Double Knock Out Rose stays compact, which makes it ideal for a wide variety of landscape uses such as foundation planting or informal hedge. It will also make your hellstrip light up with color and charm. It also makes a vibrant middle border or back border.
Add a single specimen to your cottage and perennial beds and borders, or accent your home's front steps, mailbox or near the driveway to welcome you home! 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.
What the Red Double Knock Out Rose is best known for is its drought-tolerant and highly resistant to blackspot and downy mildew! Just ensure to allow air circulation. It also shrugs off the cold and threat of frost like a true champ. Provide a full sun location and plant in well-drained soil that’s organically enriched and mulched well.
The Red Double Knock Out® Rose Shrub is a fan favorite that has it all, so don't delay ordering. We expect this specimen of health and beauty will sell out quickly. Order enough for your next project today from NatureHills.com!
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 Double Knockout Roses?
The Double Knock Out Roses are fantastic flowering shrubs that feature ease of care, disease resistance, 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 Double 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 Double 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?
NatureHills.com 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 Double Knock Out® Rose bush for sale here at NatureHills.com!
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.
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|
|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|
|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|
|#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|
|#5 Container||Ranges from||2.92 to 4.62 dry gallons / 12.86 to 20.35 dry liters in volume|
|#7 Container||Ranges from||5.98 to 6.08 dry gallons / 26.34 to 26.78 dry liters in volume|
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 NatureHills.com and each nursery or fulfillment center to ensure only compliant plants are sold to customers.
Click Here to learn more
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.
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.
Click here to see our full rates
|Botanical Name||Rosa 'RADtko'|
|Mature Height||3 - 4 feet|
|Mature Spread||3 - 4 feet|
|Sun Exposure||Full Sun|
|Fruiting Time||Orange Rose Hips in Fall|
|Pruning Time||Early Spring|