Rose Orange Glow™ Knock Out®, Rosa ‘RADslam', Orange Glow™ Knock Out® Rose, Shrub Roses, Knock-Out Roses
Rosa Orange Glow™ Knock Out® or Orange Glow™ Knock Out® Rose, part of the Knock Out® Roses collection, is a stunning, low-maintenance shrub rose admired for its luminous orange blooms with yellow and pink undertones. Blooming continuously from spring to frost, this disease-resistant, bushy rose is perfect for borders, mass plantings, or containers, adding warmth and vibrancy to any landscape.
Roses belong to the Rosaceae family, which includes other plants such as Apples (Malus domestica), Peaches (Prunus persica), and Strawberries (Fragaria × ananassa).
The Orange Glow™ Knock Out® Rose is an upright, bushy shrub that produces abundant clusters of very full, cupped blooms. Each orange flower, blending hints of coral-pink and yellow, adds a radiant touch to the garden. The flowers bloom in flushes throughout the season, ensuring a continuous, colorful display.
This rose features semi-glossy, dark green foliage that beautifully contrasts with its bright flowers. With exceptional disease resistance, self-cleaning petals, and a vigorous growth habit, Orange Glow™ Knock Out® is an effortless and show-stopping addition to any garden.
This rose is a medium-sized, bushy shrub with a dense, upright growth habit, making it well-suited for mixed borders, foundation plantings, or container gardens. Its floriferous nature and striking colors make it an excellent choice for creating structure and adding warmth to garden designs.
The Orange Glow™ Knock Out® Rose produces eye-catching, richly colored blooms that brighten up any landscape.
This Knock Out® Rose is winter-hardy in USDA Zones 4–11, making it a versatile choice for various climates. It thrives in hot, humid conditions while also being tolerant of cooler temperatures.
This rose provides valuable resources for pollinators and wildlife.
This versatile Knock Out® Rose is ideal for a wide range of garden applications:
Deer and rabbits can cause damage.
Knock Out® Roses are non-toxic to humans and pets, making them a safe addition to gardens.
Knock Out® Roses are non-invasive and a controlled, manageable addition to gardens.
Knock-out roses are a low-maintenance, compact variety of roses ideal for gardens, borders, and containers. Their continuous blooms, vibrant colors, and disease resistance make them a popular choice for gardeners of all skill levels. Here’s how to grow and care for Knock-Out Roses.
Knock-out Roses thrive with deep, consistent watering. Water at the base to keep foliage dry and prevent disease. Provide 1–2 inches of water per week, increasing during hot, dry periods. Avoid overwatering—ensure well-drained soil to prevent root rot. Mulching helps retain moisture and regulate soil temperature.
To maintain a compact size of 3–4 feet wide by 3–4 feet high, Knock Out Roses should be pruned once a year in late winter or early spring. The best time to prune is when you notice new shoots emerging from the canes—this signals that the plant is ready for its seasonal trim.
The height at which you prune will determine the size of your plant at maturity. Knock Out Roses typically triple in size after pruning, so cutting them back to about 12 inches tall ensures they will reach their full 3-foot height by the end of the season.
Once pruning is complete, collect and dispose of all cuttings to prevent pests and diseases from affecting your roses.
Knock-out roses are low-maintenance and thrive even without fertilization. However, if you want to enhance their growth and flowering, it’s important to wait until your roses are well-established and have completed at least one full bloom cycle before applying fertilizer.
✅ Use the Right Fertilizer
Choose a balanced fertilizer or one specifically formulated for roses from your local garden center. Apply it after the first flush of blooms, following the manufacturer’s recommended rates and application methods.
✅ Water Before Fertilizing
Always ensure the soil is moist before applying fertilizer to prevent root burn and promote better nutrient absorption.
✅ Avoid Late-Season Fertilization
Do not fertilize in late summer or early fall, as this can encourage new growth that won’t have time to harden before the first frost, potentially leading to winter damage.
Knock-out Roses can be propagated for home use through various methods:
Knock-out roses are known for their excellent disease resistance, but like any plant, they can occasionally face issues from pests and diseases. Understanding common problems and how to address them can help keep your Knock-Out Roses healthy and thriving.
These roses may attract common pests such as aphids, spider mites, scale insects, or caterpillars. These pests can damage foliage, flowers, and stems, reducing the plant’s vigor.
These roses may be susceptible to several fungal diseases, including rose black spot, rust, and powdery mildew. These diseases often thrive in humid conditions, causing leaf discoloration, defoliation, or stem dieback. Disorders like rose blindness (failure to bloom) and flower balling (petals failing to open) may also occur under certain conditions. In severe cases, honey fungus, a soil-borne pathogen, can damage the plant’s root system.
Hardiness |
4 - 11 |
---|---|
Heat Zones |
1 - 10 |
Climate Zones | 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, H1 |
Plant Type | Roses |
Plant Family | Rosaceae |
Genus | Rosa - Shrub Rose, Rosa |
Common names | Rose |
Exposure | Full Sun |
Season of Interest | Spring (Late), Summer (Early, Mid, Late), Fall |
Height | 4' - 5' (120cm - 150cm) |
Spread | 3' (90cm) |
Spacing | 36" - 48" (90cm - 120cm) |
Maintenance | Low |
Water Needs | Average |
Soil Type | Chalk, Clay, Loam, Sand |
Soil pH | Acid, Alkaline, Neutral |
Soil Drainage | Moist but Well-Drained, Well-Drained |
Characteristics | Showy, Cut Flowers |
Attracts | Bees, Butterflies |
Garden Uses | Beds And Borders, Hedges And Screens, Patio And Containers |
Garden Styles | Traditional Garden, City and Courtyard, Informal and Cottage |
Hardiness |
4 - 11 |
---|---|
Heat Zones |
1 - 10 |
Climate Zones | 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, H1 |
Plant Type | Roses |
Plant Family | Rosaceae |
Genus | Rosa - Shrub Rose, Rosa |
Common names | Rose |
Exposure | Full Sun |
Season of Interest | Spring (Late), Summer (Early, Mid, Late), Fall |
Height | 4' - 5' (120cm - 150cm) |
Spread | 3' (90cm) |
Spacing | 36" - 48" (90cm - 120cm) |
Maintenance | Low |
Water Needs | Average |
Soil Type | Chalk, Clay, Loam, Sand |
Soil pH | Acid, Alkaline, Neutral |
Soil Drainage | Moist but Well-Drained, Well-Drained |
Characteristics | Showy, Cut Flowers |
Attracts | Bees, Butterflies |
Garden Uses | Beds And Borders, Hedges And Screens, Patio And Containers |
Garden Styles | Traditional Garden, City and Courtyard, Informal and Cottage |
How many Rosa Orange Glow™ Knock Out® (Shrub Rose) do I need for my garden?
Plant | Quantity | |
---|---|---|
Rosa Orange Glow™ Knock Out® (Shrub Rose) | N/A | Buy Plants |
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Create a membership account to save your garden designs and to view them on any device.
Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.
Join now and start creating your dream garden!