Double Red Knock Out® Rose Bush

Double Red Knock Out® Rose Bush

18 Reviews
Regular price $49.95 Sale price $39.95 20% off
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  • Family owned farm since 1980
  • You're good to grow this in Zone X

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Explosive Red Blooms Cover This Shrub from Spring to Fall

This Double Red Knock Out® Rosebush will be a knockout of the park with its explosion of color all summer long!

The red double knockout rose bush has set a new standard in disease resistance when it comes to a beautifully bright and low-maintenance bloom. It is of the same rose family as the original rose of the knock-out family from Star Roses and plants.

This rose plant produces rich, cherry red to hot pink blossoms that will continue to grow until the first hard frost of winter. They are fully double flowers on the shrub rose bush. The bloom cycle starts in early spring and The double red roses will bloom from spring until mid-summer before the weather gets too hot. The bloom period will decrease slightly as fall and winter happen although it is relatively heat tolerant.

The red roses contrast nicely with the dark green foliage of the flowering shrub. If grown as a flowering tree, the red blooms will cascade over the green leaves year after year. This classic rose is slightly more winter-hardy than other roses but may need extra mulching for winter protection in colder areas.

The rose bush features incredible resistance to black spots and powdery mildew leaf diseases and is an excellent choice as a low hedge or accent plant in mixed beds. They can even be container grown as an indoor patio plant for the ultimate flower power.

Planting Tips when Buying Double Red Knockout Roses

Double Knock Out rose bushes prefers well-drained soil that is kept moist during the growing season. Be sure to examine the surrounding soil to make sure it’s suitable for your new rose bushes. A  Slow-Release Fertilizer applied at the top of the root ball will help tremendously with new blooms. Perfect Plants offer its very own specially formulated Rose Planting Mix to amend the soil you are planting your new rose bush in.

Water thoroughly during the first year of planting to establish strong roots. Newly planted roses require 1-2 inches of water per week.

Grow the Red Knock Out rose tree in full sun to partial sun or part shade across the United States in USDA growing zones 5-10.

When To Plant Double Red Knockout Roses

The best time of the year to plant red Double KnockOut roses is in early spring after the last frost of winter or fall, so it has a whole growing season to establish its root system.

How Tall Do Double Red Knockout Roses Get?

Double Red Knock Out rose bushes can grow between 3 to 4 feet tall and 3 feet wide making them a good shrub for smaller gardens and spaces. They are extremely fast-growing and do well when planted in full sun with 3 to 4 hours of sun every day. 

Double Red knockout roses are easy to care for and provide beautiful rose flowers and blooms during the spring and summer blooming seasons that can grace any landscape. 

Shop the Red Double KnockOut Roses for sale today and add these beautiful red and hot pink roses to your home and garden!

Shop our entire collection of Rose bushes for sale.

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Botanical Name
Rosa x 'Radtko'

Full Sun / Partial Shade

Foliage Color

Flower Color
Red, hot pink

Mature Width
3 ft

Mature Height
3 ft

Growing Zones 5, 6, 7, 8, 9, 10

Customer Reviews
4.9 Based on 18 Reviews
5 ★
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Anthony SVG verified by SHOP

My Roses are doing well, indoors for now will plant in March.

Phyllis P.
United States United States

beautiful and healthy

I ordered the knock out roses and they came packed extremely well and were healthy looking right from the start. I will definitely order again.


Perfect Plants Nursery

Thank you Phyllis for your kind words and continued support. Hope you're enjoying your Double Red Knock Out® Rose Bush. All the best.

David M.
United States United States

Product- knockout roses

Great experience. Roses arrived after having to follow up concerning the order not being shipped


Perfect Plants Nursery

Thank you for sharing your experience with us, David. Hope you and your Double Red Knock Out® Rose Bush are doing well.

United States United States


Absolutely wonderful…the roses look great and after a couple of weeks are doing very well. Would definitely order from you again and recommend you to my friends!


Perfect Plants Nursery

Hi Anon, Thank you for leaving us a review on your purchase of our Knock Out Rose bushes. We're happy to know that you are satisfied with your plants! Best, Shirley

Earl C.

We are VERY pleased with our plant and it is doing well. It is hard to believe the flowers we saw on arrival and still. The rose was well packaged and arrived is great condition.


Perfect Plants Nursery

Hi Earl. We are always so happy to read these types of reviews. Hope you're Double Red Knock Out® Rose Bush is doing well.

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