Rainbow Knock Out® Shrub Rose
Rosa x 'Radcor'
- Stay Protected with Plant Sentry ™
Rainbow Knock Out® Shrub Rose - #3 Container is backordered and will ship as soon as it is back in stock.
Plant Sentry™
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.
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Delivery and Shipping
Delivery and Shipping
Shipping
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.
Standard 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
Understanding Plant Options
Nature Hills offers plants in two main formats:
- Container Plants: Grown in pots with soil, sized by container volume and plant age
- Bare Root Plants: Dormant plants without soil, sized by height measurements
Container Plant Sizes
Container sizes indicate plant age and growing capacity rather than liquid volume equivalents. Our containers follow industry-standard nursery "trade gallon" specifications, which differ from standard liquid gallon measurements.
Young Plants (6 months to 18 months old)
Container Size | Actual Volume | Metric Equivalent |
---|---|---|
2" x 2" x 3" | 0.18 - 0.21 dry quarts | 0.20 - 0.23 dry liters |
4" Container | 0.31 - 0.87 dry quarts | 0.35 - 0.96 dry liters |
4.5" Container | 0.65 dry quarts | 0.72 dry liters |
6" Container | 1.4 dry quarts | 1.59 dry liters |
1 Quart | 1 dry quart | 1.1 dry liters |
5.5" Container | 1.89 dry quarts | 2.08 dry liters |
Established Plants (18 months to 2.5 years old)
Container Size | Actual Volume | Metric Equivalent |
---|---|---|
2 Quart | 2 dry quarts | 2.2 dry liters |
#1 Container | 2.26 - 3.73 dry quarts | 2.49 - 4.11 dry liters |
5" x 5" x 12" | 3.5 - 4.3 dry quarts | 3.85 - 4.74 dry liters |
Mature Plants (2-4 years old)
Container Size | Actual Volume | Metric Equivalent |
---|---|---|
#2 Container | 1.19 - 1.76 dry gallons | 5.24 - 7.75 dry liters |
#3 Container | 2.15 - 2.76 dry gallons | 8.14 - 12.16 dry liters |
Large Plants (3-5 years old)
Container Size | Actual Volume | Metric Equivalent |
---|---|---|
#5 Container | 2.92 - 4.62 dry gallons | 12.86 - 20.35 dry liters |
#6 Container | 5.25 - 6.01 dry gallons | 23.12 - 26.42 dry liters |
#7 Container | 5.98 - 6.53 dry gallons | 26.34 - 28.76 dry liters |
Bare Root Plants
Bare root plants are sold by height from the root system to the top of the plant. Plants may exceed minimum height requirements.
Common Sizes:
- Trees: 1 foot, 2 feet, 3 feet, 4 feet, 5 feet, 6 feet
- Shrubs & Perennials: 1 foot, 18 inches, 2 feet
Important Notes
Container Volume Specifications
- Trade Gallon Standard: Our containers follow industry-standard "trade gallon" specifications established by the American National Standards Institute (ANSI Z60.1) for nursery stock
- Volume Variations: Actual soil volume may vary due to plant root systems and growing medium settlement
- Age Indicators: Container size primarily indicates plant age and maturity rather than liquid volume equivalents
Growing Conditions
- Plant size can vary based on variety and growing conditions
- Container size helps indicate plant maturity and establishment level
- Larger containers generally mean more established root systems and faster landscape establishment
Seasonal Availability
- Bare root plants are available seasonally when dormant
- Container plants are available throughout the growing season
- Specific varieties may have limited availability in certain sizes
Questions?
For questions about specific plant sizes or availability, please contact our plant experts who can help you choose the right size for your landscape needs.
Plant Highlights
Rainbow Knock Out® Shrub Rose highlights at a glance!
Specifications
Specifications
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Brand
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Botanical Name
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Growing Zones
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Mature Height
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Mature Spread
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Sun ExposureFull Sun
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Moisture
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Soil
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Growth RateMedium
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Flower Color
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Fall Color
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Pollinator Friendly
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Fragrant
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Pruning Time
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Bloom PeriodLate Spring, Summer, Fall
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Photos Provided ByStar Roses and Plants - www.starrosesandplants.com

Growing Zones 4-11
If you'd like to establish a pretty landscape that is long on charm, but only takes a short time to maintain, use Rainbow Knock Out® Rose (Rosa x 'Radcor'). It creates a fantastic sweep of color in no time. The proven performance makes it an outstanding choice for low-maintenance gardens. These compact cuties will grow just about anywhere in the United States!
Rainbow feature single, bicolor blooms that resemble wild Roses. These yellow-centered, pinky, peachy, coral blooms arrive in every shade you can imagine! Cheerfully consistent, Rainbow Knock Out® Roses bloom all throughout the growing season! You'll be able to count on it to brighten up your landscape from late spring all the way through fall. These showy little Shrub Roses offer wonderful value!
Compact Rainbow Knock Out® Shrub Roses deliver big on style with a never-ending floral display all through the season. You'll love the spectrum of tones and the abundance of sassy, multi-colored blooms! And it's not just the blooms that catch your eye. The glossy, dark green foliage starts out as a brilliant, deep burgundy, which provides a delicious visual contrast to the coral petals.
Orange-red Rosehips add their decorative accent once the flowers have gone. Even Rainbow's semi-glossy foliage provides the garden color. The deep green leaves transform into a burgundy color once again for the autumn landscape! Wonderfully hardy throughout USDA growing zones 4 to 11, there's little this hardy shrub Rose can't handle!
Planting and Application:
Use this bushy Rose almost anywhere in the garden. 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!
Plant in Rock Garden or as a low hedge by spacing plants 3 feet on center. You'll measure from the center of one to the center of the next. Use this as a perfect modern front yard foundation plant to greet your guests in style. Plan a long, curved sweep or create a mass planting to fill in a wide, sunny spot. Plant them 2 - 3 feet apart in a zig-zagging planting pattern. Mulch between plants and keep them weeded as they fill in.
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.
For a more modern look, buy multiple of the same terracotta container with a streamlined shape. Or for a fun Boho style, choose a varied collection of glazed containers in a range of blues and purples, with different shapes and sizes that harmonize together.
- Coral-Pink Single Blooms with Yellow Centers
- 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
- Sprays & Clusters of Pollinator-Friendly Flowers
- Low Accents, Backdrops, Living Mulch, Erosion, Specimen & En Masse
#ProPlantTips for Care:
Give these Knock Out® Roses a full sun location in soil that drains well. 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.
You may not need to prune every year, but can easily keep them clipped back by removing the top third of the length of the branches in late winter. Head them back and make your pruning cut right above a swelling bud. Find more info about pruning Roses, winterizing Roses, and un-wintering Roses in spring.
You can also remove the thickest, oldest stems all the way down to the ground. This will rejuvenate your Rainbow! These top performers are a go-to selection for hard-working families. You'll love the smaller size. Like all Knock Outs®, these are bred for toughness and disease resistance. They won't give you any trouble in the landscape.
- Best in Full Sun
- Moderate Moisture Needs
- Enriched Well-Drained Soil
- Disease Resistant to Black Spot
- Cold Hardy & Heat Tolerant
People across the country are hunting for these easy-care plants. They love the high-end quality and convenience of ordering online from Nature Hills. Order this sweet Rainbow Knock Out® Shrub Rose for your garden today, before we run out of 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.