Cherry Red Double Knock Out Roses: Any Fragrance?

The Double Knock Out® Rose, also known as Rosa 'Radtko' PP16202 CPBR#3104, is a low-maintenance shrub rose with full, double cherry-red blooms and dark purplish-green foliage. It is a member of the Knock Out® Roses collection, which was first introduced in 2000 and has since become a popular choice for gardeners due to its ease of care and vibrant colours. The Double Knock Out® Rose has a mild, sweet, fruity fragrance and is known for its excellent disease resistance, continuous flowering, and improved cold hardiness.

The Double Knock Out® Rose has a sweet, fruity fragrance

The Double Knock Out® Rose is a sight to behold, with its vibrant cherry-red blooms and elegant, refined look. But it's not just the visuals that make this rose a standout; it also delights the senses with its sweet, fruity fragrance. This rose variety, part of the Knock Out® family, offers a delightful aroma that enhances its overall appeal.

The Double Knock Out® Rose, also known as Rosa 'Radtko' PP16202 CPBR#3104, is a shrub rose that stands out for its full, double flowers, resembling those of a classic rose. Its fragrance is just one of its many desirable attributes. The rose was bred by Wisconsin rose breeder William Radler and introduced in 2000, quickly gaining recognition for its beauty and ease of care.

The sweet, fruity scent of the Double Knock Out® Rose is a pleasant surprise for anyone who comes across it. While some roses are prized solely for their visual appeal, this variety engages multiple senses, creating a more holistic and memorable experience. Imagine strolling through a garden and being enveloped by the delicate, fruity aroma of these lush roses—it adds a whole new dimension to the enjoyment of these flowers.

The fragrance of the Double Knock Out® Rose is a wonderful addition to any garden or landscape. It invites you to pause and breathe in the sweet scent, taking a moment to appreciate the beauty and serenity of nature. The fruity notes add a touch of freshness and liveliness to the surroundings, creating an uplifting atmosphere. Whether you're an avid gardener or simply appreciate the beauty of flowers, the scent of these roses will undoubtedly bring a smile to your face.

In addition to its delightful fragrance, the Double Knock Out® Rose boasts several other desirable characteristics. It is known for its low maintenance, excellent disease resistance, and continuous flowering from spring to frost. Its hardy nature makes it ideal for gardeners of all skill levels, as it requires less care than traditional rose varieties. With its vibrant cherry-red blooms, this rose adds bold colour and elegance to any landscape, making it a popular choice for borders, mass plantings, or containers.

It is a low-maintenance shrub rose with full, double cherry-red blooms

The Double Knock Out® Rose is a low-maintenance shrub rose admired for its full, double cherry-red blooms. It is a vibrant addition to any landscape or garden, offering bold colour and elegance. This rose variety is known for its striking beauty and ease of care, making it a popular choice for gardeners of all skill levels.

The Double Knock Out® Rose is characterised by its rich, vibrant blooms that retain their colour without fading. Each flower features up to 23 petals, creating a lush and refined look. The dense growth and floriferous nature of this rose variety make it ideal for adding structure and a pop of colour to any garden.

In terms of care, the Double Knock Out® Rose thrives in full sun and well-drained soil. It requires regular watering, especially during hot and dry periods, and benefits from mulching to retain moisture and regulate soil temperature. While it is a low-maintenance variety, light annual pruning is recommended to shape the plant and remove crossed or interior branches. Fertilising after each bloom cycle can also enhance flowering.

The Double Knock Out® Rose is highly resistant to common rose issues such as black spot, rust, and powdery mildew. It is also winter hardy and can tolerate a wide range of climates, making it a versatile choice for gardeners in different regions. This rose typically grows to a mature size of 3–4 feet in height and width, making it a compact and manageable addition to gardens, borders, and containers.

Overall, the Double Knock Out® Rose is a stunning and effortless addition to any garden. Its low-maintenance nature, disease resistance, and abundant cherry-red blooms make it a standout choice for those seeking to add a touch of elegance and colour to their outdoor spaces.

It is winter hardy in USDA Zones 5-11

USDA zones are geographic areas defined by their average annual minimum temperature, which is a critical factor in determining the survival of many plants. The USDA Plant Hardiness Zone Map is a standard guide for gardeners and growers to determine which perennial plants are most likely to thrive in a specific location. The map is divided into 13 zones, each representing a 10-degree Fahrenheit range of average annual extreme minimum winter temperatures.

USDA Zones 5-11 cover a wide range of climates and locations across the United States. Zone 5 includes the southern coastal region of Alaska, the North Central United States, and portions of New England, with minimum average temperatures between -20 and -10 degrees Fahrenheit. This zone experiences moderately cold winters, and gardeners can extend the growing season by using cold frames or started plants.

Zone 6 has a mild climate with average minimum winter temperatures between -10 and 0 degrees Fahrenheit. It covers a large portion of the United States and offers many planting options. Gardeners in this zone can enjoy spring, summer, and fall blooms, as well as a variety of vegetables.

Zone 7 spans approximately 15 states, including eastern coastal areas, the Oklahoma prairies, arid regions of the southwest, and forests of Oregon and Washington. It has cool winters with average minimum temperatures between 0 and 10 degrees Fahrenheit. Gardeners in this zone have access to a diverse range of plants from seed catalogues, local home stores, nurseries, and greenhouses.

Zone 8 is one of the warmest plant hardiness zones, covering a large portion of the southern United States and extending up the western coast. It has hot summers and mild winters, with average minimum winter temperatures between 10 and 20 degrees Fahrenheit. Growers in this zone typically enjoy a long planting season.

Zone 9 is a year-round planting zone found in California, Arizona, Texas, Florida, and along the Gulf of Mexico coast. It has warm winters and hot summers, with average minimum winter temperatures between 20 and 30 degrees Fahrenheit. While tropical plants thrive in this zone, the extreme heat of summer limits some planting possibilities.

Zone 10 is located in southern inland California, southern Florida, and Hawaii, with average minimum winter temperatures between 30 and 40 degrees Fahrenheit. Gardeners in this zone benefit from avoiding freezing temperatures, but the extreme summer heat and humidity limit planting choices to heat-tolerant tropical plants.

Zone 11, the warmest of the USDA hardiness zones, is found in Hawaii, the Florida Keys, Puerto Rico, and a few small areas on the continental United States. It has mellow winters with average minimum temperatures between 40 and 50 degrees Fahrenheit and zero frost days. Growers in this zone focus on heat-tolerant tropical plants as cold hardiness is not a concern.

The Double Knock Out® Rose, with its improved winter hardiness, thrives in USDA Zones 5-11. This versatility makes it adaptable to various climates, from cooler temperatures to hot, humid conditions. Its ability to withstand a wide range of temperatures is a significant advantage for gardeners looking to add bold colours and elegance to their landscapes.

It is ideal for borders, mass plantings, or containers

The Double Knock Out® Rose is a versatile and attractive addition to any garden. Its compact, bushy form and upright, spreading habit make it perfect for mixed borders, foundation plantings, and container gardens. Here are some reasons why it is ideal for borders, mass plantings, or containers:

Borders

The Double Knock Out® Rose is a bushy shrub that typically grows to a height and width of 3–4 feet (90–120 cm). This size makes it perfect for creating a stunning display in mixed flower beds or ornamental borders. Its dense growth and abundant flowering add structure and colour to any garden.

Mass Plantings

The Double Knock Out® Rose is also excellent for mass plantings or covering large areas with colour. Its continuous flowering from spring to frost ensures a bold and elegant display throughout the season. The rich cherry-red flowers retain their vibrancy without fading, providing a refined and elegant look.

Containers

This rose variety is well-suited for containers, thriving in pots and planters for patios and balconies. Its compact size and continuous blooms make it a popular choice for container gardening, requiring minimal maintenance while adding a touch of bold colour and elegance to any outdoor space.

Overall, the Double Knock Out® Rose is a low-maintenance and disease-resistant variety that is perfect for those seeking an effortless way to bring beauty and fragrance to their garden, regardless of the planting method they choose.

It is a continuous bloomer from spring to frost

The Double Knock Out® Rose is a continuous bloomer from spring to frost, rewarding gardeners with an abundance of lush, vibrant blooms throughout the growing season. This rose is prized for its exceptional flowering habit, providing a dazzling display of rich, double blooms that emerge in flushes throughout the season.

The blooming period of the Double Knock Out® Rose begins in early spring and extends until the arrival of the first hard frost in the late autumn or early winter. During this extended period, the rose continuously produces clusters of full, double flowers, each showcasing up to 23 petals. The individual blooms are large, measuring up to 3.25 inches (8 cm) across, and they retain their vibrant cherry-red hue without fading.

The continuous blooming nature of the Double Knock Out® Rose sets it apart from many other rose varieties. While most roses have a more defined flowering period, this variety stands out for its ability to produce a near-constant display of colourful flowers throughout the warmer months. This extended blooming season is a result of its repeat-flowering habit, with new flushes of blooms emerging every five to six weeks.

To promote and prolong the blooming period, it is essential to provide proper care for your Double Knock Out® Roses. Fertilising these roses after each bloom cycle will help to encourage a continuous supply of new flowers. Additionally, ensuring that your roses receive full sun exposure and well-drained soil will contribute to their overall health and flowering vigour.

By selecting the Double Knock Out® Rose, gardeners can expect a continuous display of vibrant cherry-red blooms from spring until frost. With its prolific flowering habit and striking colour, this rose variety is an excellent choice for those seeking a bold and elegant addition to their garden.

Frequently asked questions