Double Red Knock Out Rose (Rosa x 'Radrazz')

4.7
Rated 4.7 out of 5 stars
14 Reviews

Introducing the exquisite Double Knock Out® Rose, a cultivar that stands in a class of its own, blending beauty with resilience. This variety, scientifically known as Rosa 'Radtko', is a further modified version of the famed Knock Out Roses, first brought to life by the innovative breeding of William Radler in 2000. What sets the Double Knock Out® Rose apart is not just its stunning blooms but its robust nature, offering a spectacle of color and vitality that endures from the early whispers of spring until the first touch of frost graces the garden.

The Double Knock Out® Rose is more than just a plant; it's a statement of elegance and endurance. With its abundant, thick, and vibrant blooms, it captivates onlookers, transforming any garden into a tapestry of life and color. The versatility in the hue of its blooms, ranging from the deepest pinks to the richest cherry reds, adds an unparalleled depth and dynamism to its appearance. But beauty is not its only forte. This rose variety is celebrated for its exceptional hardiness, disease resistance, and the ability to flourish in a wide array of climatic conditions, from the cold-hardy zones to the heat-intensive areas of Southern Florida, Texas, and California.

Whether you're an experienced gardener looking to add a resilient yet stunning variety to your collection, or a novice enchanted by the allure of roses but intimidated by their care, the Double Knock Out® Rose is your answer. It promises not just a visual feast for the eyes but a gratifying gardening experience, marked by ease and satisfaction.

  • Pollinator Friendly
  • Reblooming
  • Cold and Heat Tolerant
Regular price $37.50
Sale price $67.13
44% OFF
Size: Quart Plant
Double Red Knock Out Rose (Rosa x 'Radrazz')
Double Red Knock Out Rose (Rosa x 'Radrazz')
Regular price $37.50
Sale price $67.13

Directions for Planting and Care

Planting

Embarking on the journey of planting Double Knock Out® Roses is the first step towards creating a garden brimming with vibrance and life. These roses thrive in areas blessed with full to partial sunlight, requiring at least 6 to 8 hours of sunlight daily. The ideal location is one where the roses can bask in the gentle morning sun, while being shielded from the harsh afternoon rays, ensuring a balance that fosters health and bloom.

The planting process is a blend of careful planning and attention to detail. Begin by selecting a spot that offers good drainage; these roses do not favor waterlogged conditions. Prepare the ground by digging a hole that is twice as wide and deep as the root ball of your rose. This ensures that the roots have ample space to spread and access nutrients. As you place the rose in the hole, ensure that it sits at the same depth as it did in its container, a critical step to prevent stress on the plant. Space each rose 3 feet apart, allowing them to grow and flourish without competition. Finally, mulch the area generously to retain moisture, regulate soil temperature, and discourage the growth of competing plants.

Watering

Water is the lifeblood of roses, and the Double Knock Out® Rose is no exception. However, it demands a watering routine that is both consistent and mindful. During its initial growth stages, the rose requires a generous and regular supply of water to establish its roots and support its rapid growth. As it matures, its watering needs diminish, yet the importance of deep, thorough watering sessions persists. It's crucial to water at the base of the plant, targeting the roots rather than the foliage, to prevent diseases and ensure that every drop counts. During dry spells, the frequency of watering may need to increase, but always with an eye on preventing waterlogging.

Fertilizing

Nourishment through fertilization is a cornerstone of vibrant growth for the Double Knock Out® Rose. An organic rose fertilizer, applied monthly, provides the essential nutrients that fuel the rose's growth and blooming prowess. The timing of fertilization is key; early spring, as the plant breaks dormancy and begins to unfurl new leaves, is the first critical window. A second round of fertilization in mid-summer aligns with the bloom cycle, invigorating the plant and enriching the color and size of the blooms.

Pruning

Pruning is an art form, a careful dance of removal and retention that shapes the growth and health of the Double Knock Out® Rose. The late winter or early spring, when the plant is in a dormant state, presents the ideal moment for this task. Pruning back to about 12 inches above the ground stimulates the plant, encouraging robust growth that can reach heights of 3–4 feet by the season's end. The tools of this trade must be treated with respect; sterilizing pruning shears before use ensures a clean cut, minimizing the risk of disease and stress to the plant.

In the world of gardening, the Double Knock Out® Rose is a true gem, combining the allure of traditional roses with an unmatched resilience and ease of care. It's not just a plant; it's a companion for your garden, promising a season filled with vibrant blooms and a gratifying gardening journey. Whether gracing a meticulously planned landscape or adding a splash of color to a simple backyard garden, the Double Knock Out® Rose is a testament to the beauty and resilience inherent in nature.

Frequently Asked Questions

How resistant are Double Knock Out® Roses to diseases and pests?

What should I do if my Knock Out® Roses are getting black spots or powdery mildew?

How can I protect my Knock Out® Roses from pests like voles or Japanese Beetles?

Do Double Knock Out® Roses need winter protection?

Growing Zone
4-9

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Botanical Name
Rosa 'RADtko'
Foliage Color
Green
Flower Color
Red
Flower Size
3 Inches
Flower Fragrance
Slightly Spicy
Fall Color
Burgundy, Purple
Type
Deciduous
Mature Height
3-4 Feet
Mature Width
3-4 Feet
Growth Rate
Fast
Exposure
Full Sun, Partial Shade
Soil Needs
Well Drained
Water Needs
Moderate
Pruning Needs
Early Spring, no need to deadhead, prune by 1/3

What our customers say

Real reviews from real customers

4.7
Rated 4.7 out of 5 stars
Based on 14 reviews
Total 5 star reviews: 11 Total 4 star reviews: 2 Total 3 star reviews: 1 Total 2 star reviews: 0 Total 1 star reviews: 0
93%would recommend this product
14 reviews
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  • AN
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    I recommend this product
    Rated 5 out of 5 stars
    3 months ago
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