Double Red Knock Out® Rose Bush

Double Red Knock Out® Rose Bush

17 reviews
  • Reblooming

  • Self-cleaning

  • Disease resistant

  • Drought tolerant

Regular price $69.95 Sale price $59.95 14% off

  • In stock, ready to ship
  • Inventory on the way
  • Ships in 2-3 business days
  • Buy direct from the grower
  • Family owned farm since 1980
  • You're good to grow this in Zone X

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. Roses will bloom from spring until mid-summer profusely 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 to 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 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.


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. It can get up to 3 feet tall and 3 feet wide and is extremely fast-growing. The best time of the year to plant the knockout roses is in early spring or fall so it has a whole growing season to establish its root system.

Planting Knockout Rose Bushes

Double Knock Out rose bushes prefer 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. Water thoroughly the first year of planting to establish strong roots. Newly planted roses require 1-2 inches of water per week.

They are extremely cold hardy and easy to grow roses with some special care. They can be grown in most areas of the country and the red flowers will grace any landscape. Drought tolerant and self-cleaning once established, this aesthetic rose shrub suits every garden and every lifestyle.

Double Red knockout roses are easy to care for and provide beautiful rose blooms during the spring and summer blooming season. Occasionally, we get customers asking us why their rose bushes leaves turn yellow. It’s usually a sign of overwatering or soil that’s too compact and doesn’t allow oxygen to flow to the roots. Be sure to aerate the native soil if it compacted with perlite or vermiculite to help with air circulation. Other causes of yellowing leaves could be downy mildew but that is uncommon and should be treated with fungicides.

Perfect Plants offer their very own specially formulated Rose Planting Mix to amend the soil you are planting your new rose bush or rose container in.

Shop the red Double KnockOut Roses for sale.

Grow guide for Roses is available as well as another blog on how to Plant a Rose Bush.

Ask a question

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

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 17 Reviews
5 ★
4 ★
3 ★
2 ★
1 ★
Write a Review Ask a Question

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
Phyllis P.
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.

David M.
United States United States

Product- knockout roses

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

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

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

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.

Bao P.


Perfect Plants

Hi Bao! We appreciate your Double Red Knock Out® Rose Bush purchase. Smell you later!

Recently viewed