Knock Out® Orange Glow™ Shrub Rose
Rosa ‘Radslam’ PP35,826
- Stay Protected with Plant Sentry ™
Knock Out® Orange Glow™ Shrub Rose - #2 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
Knock Out® Orange Glow™ 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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Pollinator Friendly
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Pruning Time
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Bloom PeriodSummer, Late Spring, Fall

Growing Zones
Knock Out® Orange Glow™ Rose
Get your glow on! The Knock Out® Orange Glow™ Rose PP#35,826 (Rosa 'Radslam') is a show-stopping, everblooming Shrub Rose with fiery orange blossoms that seem to glow in the garden! This new addition to the Knock Out® family is just as low-maintenance, disease-resistant, and floriferous as its predecessors, but with an exciting new color twist.
The warm orange petals transition into sunset hues, making this shrub a standout in any landscape. Plus, it reblooms continuously from late spring to frost, ensuring non-stop color and delightfully soft fragrance throughout the season.
Its deep green foliage stays clean and lush, thanks to its superior resistance to black spot, powdery mildew, and rust. In the fall, the foliage takes on golden hues, adding another layer of seasonal interest before winter dormancy!
Like all Knock Out® Roses, Orange Glow™ thrives in Zones 4-11, tolerating cold, heat, humidity, and urban pollution with ease. It flourishes in full sun and well-drained soil, adapting to various conditions while requiring minimal care. Whether you're a beginner gardener or a seasoned rosarian, this brilliant bloomer delivers vibrant color without the fuss!
Key Features
- Glowing orange blooms with sunset undertones
- Reblooming from late spring to frost
- Compact, rounded form (3-5 feet tall and wide)
- Disease-resistant and low-maintenance
- Heat and humidity-tolerant
- Lush green foliage with a golden fall color
- Self-cleaning
- Widely adaptable!
Landscaping Uses
Compact and bushy, this rounded Rose shrub reaches 3-5 feet tall and wide, making it perfect for sun gardens of all sizes. The Knock Out® Orange Glow™ Rose is a compact, floriferous shrub ideal for brightening up any garden space. Its manageable size and prolific blooms make it a versatile choice for various landscape designs.
- Stunning focal point in foundation plantings
- Eye-catching border or mass planting
- Mixed into perennial gardens for season-long color
- Thrives in large containers for patios and balconies
- Used as a colorful low hedge along pathways or fences
- Nectar and pollen-rich resource for Bees, Butterflies, and other beneficial insects
- Defensive plantings and hedges - In addition to its beauty, the naturally thorny stems make it an excellent choice for defensive barriers, helping to deter trespassers—both the two-legged and four-legged kind—while still providing a glowing display.
Care and Maintenance
As a deciduous, shrub-form Rose, Knock Out® Orange Glow™ is easy to grow and requires minimal maintenance while delivering maximum impact.
- Planting Time: Spring or fall for the best establishment
- Sun Needs: Full sun (at least 6 hours of direct sunlight), preferring the drying power of the morning sun for the healthiest foliage
- Soil Needs: Well-drained, loamy soil; tolerates various soil types as long as they are not soggy or compacted
- Moisture Needs: Moderate regular moisture but not soggy; water deeply in dry spells
- Mulch: Apply a 3-4 inch layer of mulch, shredded bark, or compost to retain moisture and regulate soil temperature
- Fertilization Needs: Feed with a balanced Rose fertilizer in early spring and midsummer for best blooms
- Pruning Info: Prune Roses in early spring to shape and encourage fresh growth; blooms on new wood
- Renewal Pruning: Cut back by one-third every few years to rejuvenate the plant
- Special Needs/Perks:
- Deer seldom bother these thorny shrubs unless desperate
- Disease-resistant
- Self-cleaning (no deadheading required)
- Drought-tolerant once established
A Glowing Addition To Your Garden
The Knock Out® Orange Glow™ Rose lives up to its name, delivering an eye-catching glow that lasts all season long. Whether planted en masse, as a border, or in a container, this resilient and radiant Rose will brighten your landscape with ease.
Order yours now from Nature Hills Nursery and enjoy a garden filled with glowing orange blooms all season long!
Frequently Asked Questions
Do Knock Out® Orange Glow™ Roses require deadheading?
No! Like all Knock Out® Roses, Orange Glow™ is self-cleaning, meaning spent blooms drop off on their own, encouraging continuous flowering.
How much sun does the Knock Out® Orange Glow™ Rose need?
This Rose thrives in full sun, requiring at least 6 hours of direct sunlight per day for optimal blooming.
Is the Knock Out® Orange Glow™ Rose resistant to disease?
Yes, it has excellent resistance to common Rose diseases like black spot, powdery mildew, and rust, making it incredibly low-maintenance.
Can I grow Knock Out® Orange Glow™ Rose in a container?
Absolutely! This compact, rounded shrub performs well in large containers, as long as it has proper drainage and full sun exposure.
It is hardy in Zones 4-11 and can tolerate a range of climates, including heat and humidity. In colder regions, applying mulch around the base in winter can help protect the roots.