Knock Out roses are available in a wide range of colors and variations, each with its own unique characteristics. From the original cherry red to hot pink blooms, to double flowers in bright pink, and even yellow to cream shades, Knock Out roses offer a diverse palette for your garden.
What Colors Do Knock Out Roses Come In?
Red Knock Out®
The original Knock Out rose, known for its cherry red to hot pink blooms.
Double Knock Out®
Features full, double flowers in a cherry red color, similar to classic roses. It is as resistant to black spot as the original and slightly more winter hardy.
Pink Knock Out®
Produces double bright pink flowers. There is also a Pink Double Knock Out® variety with similar characteristics.
Rainbow Knock Out®
Known for its coral-pink blooms with yellow centers. New foliage appears deep burgundy and ages to dark green.
Blushing Knock Out®
Features delicate pink single flowers on a 3-4 foot shrub.
Sunny Knock Out®
Has fragrant yellow to cream flowers that fade quickly to a pastel cream color. The yellow color is more intense in cooler times of the year.
White Knock Out®
Produces single white flowers with very dark foliage.
Coral Knock Out®
Displays brick orange flowers that fade to coral, especially vibrant in hot, humid climates.
Peachy Knock Out®
Blooms with attractive pink flowers that have a peach color effect due to the combination of pink petals becoming yellow in the center.
Orange Glow™
A new variety for 2024, featuring orange flowers with yellow and pink hues.
What Are the Growth Conditions and Requirements for Knock Out Roses?
Knock Out roses need at least six to eight hours of sunlight per day and prefer well-draining, slightly acidic soils with a pH between 6.0 and 6.5. They should be watered regularly, ensuring the top 3 inches of soil are dry, and mulched around the plants to retain moisture. These roses are cold-hardy in USDA zones 5 to 9 and can tolerate heat and humidity up to zone 11 in some cases. Pruning in early spring after the last threat of frost is recommended to maintain shape and promote new growth.
Where Can You Purchase Knock Out Roses?
Knock Out roses can be purchased from various nurseries, gardening stores, and online retailers, with prices ranging from $20 to $50 or more per plant, depending on the size and variety.
What Are the Care Instructions and Challenges for Knock Out Roses?
Knock Out roses are generally resistant to common rose diseases, but regular monitoring for pests like aphids, whiteflies, and spider mites is necessary. Fertilizing in the early growing season with a balanced fertilizer can promote healthy growth and blooming, while avoiding over-fertilizing. Maintaining the color vibrancy of Knock Out roses requires ensuring they receive adequate sunlight and water, regular pruning, and mulching around the plants.
Reference:
[1] Arbor Valley Nursery: Knock-Out Rose – Plant Guide – Arbor Valley Nursery
[2] UF/IFAS Gardening Solutions: Knock Out Roses – UF/IFAS Gardening Solutions
[3] Meadows Farms Nurseries and Landscaping: Knockout Roses – Meadows Farms Nurseries and Landscaping
[4] The Spruce: Knock Out Rose Varieties and Care
[5] Proven Winners: Knock Out Rose Varieties
