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Sunny Knock Out® Shrub Rose

Rosa 'Sunny'

  • Hardy in zones 4-11, thrives in heat and humidity with exceptional disease resistance to black spot and powdery mildew
  • Cheerful yellow blooms fade to soft cream, creating a beautiful two-tone display from late spring through hard frost
  • Self-cleaning flowers require absolutely no deadheading while attracting bees and butterflies all season long
  • Deer resistant and drought tolerant once established, perfect for low-maintenance landscapes and container gardens
Regular price $7209
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Plant Size

Planting & Care

Where to Plant

  • Sunlight: Plant in a location that receives at least 6 hours of direct sunlight daily to ensure the most vibrant yellow blooms and vigorous growth. While it tolerates partial shade, too little sun will reduce flower production and may lead to leggy plants.
  • Soil: This rose is adaptable to various soil types but thrives best in well-drained, organically rich soil. If you are working with heavy clay or sandy soil, amend it with compost or peat moss to improve texture and drainage.

Watering Requirements

Keep the soil consistently moist during the first growing season to help the roots establish deep into the ground. Once established, the Sunny Knock Out® is drought-tolerant, but regular watering during dry spells will keep the foliage lush and bloom production steady.

Pruning Tips

This shrub blooms on new wood, so the best time to prune is in late winter or very early spring before new growth begins. Simply cut the bush back by about one-third to remove dead wood and shape the plant, which stimulates fresh growth for a heavy flush of flowers.

Fertilizer Needs

Feed your rose with a balanced, slow-release rose fertilizer in early spring just as new leaves start to unfurl. Avoid applying high-nitrogen fertilizers late in the season, as this can encourage tender new growth that is susceptible to damage from winter frosts.

Delivery and Shipping

Preorder Shipping Schedule

We ship your plants when it's safe to transport them to your zone. Dates are estimated and subject to weather delays.

Zone 3-4 Week of March 30th
Zone 5 Week of March 16th
Zone 6 Week of March 2nd
Zone 7-12 Week of February 23rd


Shipping Rates

Ships in 3-4 business days • Tracking provided • Weather protected

Under $50 $9.99
$50 - $99.99 $14.99
$100 - $149.99 $16.99
$150 - $198.99 $24.99
$199+ FREE

✓ Zone-specific timing • ✓ Professional packaging • ✓ Health guarantee

Sunny Knock Out® Rose (Rosa 'Radsunny') brings effortless color to your garden with cheerful yellow blooms that fade to soft cream, creating a stunning gradient effect from late spring until the first hard frost. This breakthrough landscape rose combines the carefree reliability of the legendary Knock Out® family with a sunny disposition that brightens borders, foundation plantings, and containers with absolutely no fuss.

Continuous Color Without the Work

Each flower opens as a vibrant buttery yellow, then gracefully transitions to a lighter cream shade, giving the plant a beautiful two-tone appearance throughout the season. Blooms measure up to 2.5 inches across with a light, sweet fragrance that carries through the garden. The real magic happens when spent flowers drop cleanly on their own, no deadheading required. This self-cleaning habit means you get months of nonstop blooms without spending weekends snipping off faded flowers.

Disease Resistance That Actually Works

Sunny Knock Out® earned its place in gardens nationwide through exceptional resistance to the diseases that plague traditional roses. Black spot, powdery mildew, and rust simply don't affect this rose, even in humid climates where fungal diseases thrive. The glossy green foliage stays clean and healthy all season without weekly fungicide sprays. This is the rose for gardeners who want gorgeous blooms without the chemical maintenance schedule.

Perfect for Modern Landscapes

Growing 3-4 feet tall and wide, Sunny Knock Out® fits beautifully in mixed borders alongside perennials and ornamental grasses. Plant in groups of three or five for mass color impact, use as a low flowering hedge along walkways, or showcase a single specimen in a decorative container on your patio. The rounded, bushy habit looks polished without constant shaping, and the moderate growth rate means it won't outgrow its space in a single season.

Wildlife Magnet

Bees and butterflies visit the abundant blooms throughout the day, making Sunny Knock Out® a pollinator-friendly choice for wildlife gardens. Unlike double-flowered roses where petals hide the pollen, these semi-double blooms offer easy access to nectar and pollen. Deer and rabbits leave the thorny stems alone, so your investment stays protected even in areas with heavy browse pressure.

Heat and Drought Tolerance

Once established, Sunny Knock Out® laughs at summer heat and drought conditions that send traditional roses into decline. The deep root system taps into soil moisture even during dry spells, and the plant continues blooming when others shut down. This makes it an ideal choice for water-wise landscapes, xeriscaping, and gardens where irrigation is limited. In hot, humid climates, the yellow color actually intensifies rather than fading.

Year-Round Interest

While the flowers steal the show from late spring through fall, Sunny Knock Out® offers additional seasonal interest. In autumn, the foliage develops burgundy-purple tones before dropping, and small orange-red rose hips form on the stems, providing food for birds through winter. The upright branching structure adds architectural interest to the winter garden even after leaves fall.

Sunny Knock Out® Rose proves that growing gorgeous roses doesn't require a degree in horticulture or a garage full of sprays and fertilizers. This is the rose that succeeds where others fail, delivering reliable color and effortless beauty in zones 4-11 with minimal care. For seasonal pruning tips and planting advice, see our Knock Out Roses Complete Guide. Whether you're a first-time gardener or a seasoned rose enthusiast looking to simplify your routine, Sunny Knock Out® delivers professional results with beginner-friendly ease.

Frequently Asked Questions

How is Sunny Knock Out® different from other Knock Out® roses?

  • Sunny Knock Out® features unique yellow blooms that fade to cream, while the original Knock Out® is cherry red. All Knock Out® varieties share the same exceptional disease resistance, self-cleaning habit, and easy care requirements. Sunny has green foliage rather than the purple-tinted leaves of the original red variety.

Do Knock Out® roses need full sun?

  • Yes, Sunny Knock Out® needs at least six hours of direct sunlight daily for best flowering. Plants grown in less sun will produce fewer blooms and develop a leggy, open habit. In extremely hot climates, light afternoon shade is tolerated, but morning and midday sun are essential for heavy bloom production.

How often do I need to deadhead Sunny Knock Out® roses?

  • Never. Sunny Knock Out® is self-cleaning, meaning spent flowers drop off automatically without any help from you. This sets it apart from traditional roses that require weekly deadheading to keep blooming. You can enjoy continuous flowers from spring through frost without touching the plant.

Can I grow Sunny Knock Out® in a container?

  • Absolutely. Use a container at least 18 inches in diameter with drainage holes and fill with quality potting mix. Container-grown roses need more frequent watering than in-ground plants, especially during summer heat. Feed monthly during the growing season, and in zones 4-6, move containers to a protected location or wrap them in burlap for winter.

When should I prune my Sunny Knock Out® rose?

  • Prune once in late winter or early spring before new growth begins, cutting the entire plant back to 12-18 inches tall. This encourages bushy growth and abundant flowering. The plant will triple in size by summer. Knock Out® roses don't require the complicated pruning techniques of hybrid tea roses.

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