Rainbow Knock Out® Rose Tree

Availability: Out of stock

Just as rainbows present a variety of colors, the remarkable Rainbow Knock Out® Rose Tree (Rosa x 'Radcor') provides multi-colored appeal with shades of burgundy, green, pink, yellow, and gold from spring through fall! The stand-out feature of this gorgeous Shrub Rose variety turned elegant tree-form, is of course its abundant 5-petaled blossoms that appear in May and keep on blooming right up until the first frost!

Just like the well-known and well-loved Shrub Form of this fantastically showy Rose Tree, you'll get a varied ombre or patchwork effect all over the entire rounded canopy of yellow-centered, pinky, peachy, coral blooms of every shade you can imagine! Each 2-inch bloom begins as a one-inch bud of deep, coral pink. As the blossom opens, lighter shades of coral pink take the stage, with a brilliant yellow center and golden stamens topping off the brilliant display.

Even Rainbow's semi-glossy foliage provides the garden color. New leaves begin with a burgundy hue, then transition to shades of dark green before providing burgundy color once again for the autumn landscape. Plus, orange-red Rosehips add their decorative accent once the flowers have gone. Use these hips for tea, preserves, dried décor, and crafts, or leave them outside for the birds and for winter interest!

This sturdy Rose tree is expertly grafted and super cold and heat tolerant throughout USDA growing zones 5 to 10, there's little this hardy Shrub Rose can't handle! Very low-maintenance and easy to grow, even the most novice gardener can have success! Making these Rainbow Knock Out® Rose Trees ideal gifts and long-lasting memorial plantings! Standing atop its 2-3 foot tall, straight and sturdy Rose standard trunk, Rainbow Tree Rose stands head and shoulders above the rest!

Planting and Application:

Rainbow Knock Out® Roses seem to glow in the sunlight! Plant them near your patio seating area, and you'll heighten the scene for family and friends. You'll enjoy radiant multi-hued bouquets and your pollinators will love the nectar-rich blooms! Achieve a multi-level mass planting or eye-catching grouping by surrounding your Rose tree with its shrub form! Or create modern plantings by alternating Knock Out® Groundcover Roses with punctuations of their Tree forms in between in long straight, evenly-spaced rows!

Rainbow Knock Out® Tree Roses would make a lovely accent to a border along a walkway or add height to a Rose garden, perennial border, or Cottage garden! For major curb appeal and neighborhood clout, plant one in a container for your front porch. Go big with a matched set on either side of your front entry stairs or front door in the sun! There's nothing like greeting guests with a tree of rainbow Roses!

Plant them in the ground or use them in colorful containers. Use one or use several in a long drift or mass planting for a huge boost of curb appeal. Use several as "Thrillers" in large containers placed along your patio for an easy-breezy summer display. You'll be able to dress these up and down. Knock Outs® is a forgiving plant that works well with many styles and other colors in the landscape!

  • Multi-Colored Coral-Pink Single Blooms with Yellow Centers
  • Long Blooming & Reblooms All Season Long
  • New Foliage Emerges Deep Burgundy, Ages to Dark Green
  • Burgundy Fall Color & Orange-Red Rosehips in Autumn
  • Wonderful Cut Flower & Rosehips For Dried Décor & More
  • Low-Maintenance Shrub Rose Made Into A Fantastic Rose Tree!
  • Pollinator-Friendly Flowers
  • Low Accents, Backdrops, Living Mulch, Erosion, Specimen & En Masse

#ProPlantTips for Care:

Rainbow loves full sun, but unlike some Rose varieties, can also be tolerant of just a little shade in the afternoons - especially in the hottest of its favored growing zone range. Provide a location in soil that drains well and has good air circulation. Water enough to maintain consistent soil moisture at first, but once established, Knock Out® Roses are quite self-reliant except during extreme conditions.

Feed a good organic fertilizer in early spring, and again in mid-summer. Mulch your plants to 3 to 4 inches deep and spread out 3 feet. This will keep roots cool and maintain surface moisture. This will also help in controlling weeds and provides a nice, uniform look to the garden bed.

Rose Tree Care & Pruning

Some winter protection for Tree Form Roses is suggested for the cooler zones by overwintering your Rose in an unheated garage after it goes dormant, or outside with a straw and burlap wrap. Then in spring, take it back out or unwrap it and trim the head back to about a 1-2 foot sphere just as it begins to grow again in spring.

Early each spring, after the last frost of the year has passed, it's always a good idea to prune back the Rose tree several inches to maintain the nice round form atop its trunk. Keep new blooms returning with occasional deadheading, quickly improving your overall display. Prune away suckers and branching that forms at the base or on the trunk each year too. Find more info about pruning Roses, winterizing Roses, and un-wintering Roses in spring.

Like all Knock Outs®, these are bred for toughness and disease resistance, and pest resistance and are self-cleaning (so you won't need to fuss with deadheading throughout the seasons). They won't give you any trouble in the landscape!

  • Best in Full Sun
  • Moderate Consistent Moisture Needs - Especially in Containers
  • Enriched Well-Drained Soil
  • Good Disease Resistance to Black Spot
  • Cold Hardy & Heat Tolerant
  • Self-Cleaning - Prune Early Spring

Rainbow Knock Out® Shrub Roses are remarkable in and of themselves but grafted into a tree form make them simply marvelous! People across the country are hunting for this easy-care Rose Tree! They love the high-end quality and convenience of ordering online from Nature Hills. Order this sweet Rainbow Knock Out® Tree Rose for your garden as soon as you see them back in stock!

Rose Bush FAQs

Where Is The Best Place To Plant Rose Bushes?

Roses need a protected location and prefer full sun and favor the drying power of the morning sun and flower best in at least 6 hours of direct sunlight a day. Choose a location in good, enriched soil that drains well and has good air circulation.

What Is The Best Month to Plant Roses?

You can plant Roses any time if you are able to provide enough consistent moisture and attention. While there is not a specific month that is best, generally because it changes with temperatures, climate and growing zone. However, the easiest times of the year to get Rose bushes established in your landscape are in spring after the last frost date, and in fall about 4-6 weeks before the first frost.

Do Roses Come Back Every Year?

Rose bushes are deciduous woody perennial shrubs and will return bigger and better each year.

How Do I Find Rose Bushes & Trees for Sale Near Me?

Make your life easier and your yard happier by shopping for Roses at NatureHills.com online nursery. You'll find a massive selection of Rose bushes for sale, including many lovely varieties!

Choose the right shrub for your area by first finding your growing zone by entering your zip code in the field above the Plant Highlights section on our product pages. Narrow down your options by plant hardiness zone, sun availability, and size requirements.

Place your order, knowing it's backed by the Nature Hills Nursery product guarantee and protected by Plant Sentry™, which helps ensure regulated plant materials aren't sent to prohibited areas.

Expect to receive your plants at the appropriate planting time for your growing zone when temperatures are safest to ship through and into.

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 don'ts when it comes to shipping plants. Find your Roses for sale here at NatureHills.com!

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 NatureHills.com 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
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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


Rainbow Knock Out® Rose Tree Is Suited to Grow in Zones 5-10
Growing Zones 5-10
More Information
Brand Knock Out
Botanical Name Rosa x 'Radcor'
Type Deciduous
Mature Height 4 to 7 Feet
Mature Spread 3 to 4 Feet
Sun Exposure Full Sun
Soil Widely Adaptable
Moisture Moderate
Growth Rate Medium
Flower Color Burgundy New Growth
Foliage Burgundy New Growth
Foliage Color Dark Green
Fall Color Burgundy / Purple
Pollinator Friendly Yes
Fruiting Time Orange-Red Hips
Pruning Time Early Spring