Knock Out® Rose
Shrub
- Vibrant magenta flowers pop in the landscape!
- The original disease resistant rose.
- Flowers bloom for over five months.
- Low maintenance and easy to grow rose.
- Grown on its own roots - not grafted. No special protection or fussing required.
- Zones 5-9, sun, 4' tall x 4' wide at maturity.
ZONE
EXPOSURE
HEIGHT
Description
Details
Common name: Rose
Zone: 5 - 9
Sun exposure: Sun (> 6 hours sun)
Height x width: 3-4' tall x 3-4' wide
Flower color: Red / pink
Foliage color: Green
Bloom time: Summer-fall
Features: Low flammability, heat tolerant, cold tolerant
Uses: Accent, border, container gardening, cottage gardening, foundation planting, ground cover, hedge, mass planting, ornamental, specimen.
How to Grow
Light: Sun (> 6 hours sun)
Water: Try to keep the soil evenly moist, especially in their first growing season. Never allow the foliage to remain wet into the evening; water early in the day.
Spacing: 3 - 4 ft.
Fertilizing: To keep the flowers coming, feed your roses with a fertilizer blended especially for roses. This can be done after each bloom cycle.
Winterizing: Spread a layer of composted manure, compost, or shredded leaves over the base of the plant in late fall after the ground freezes. Covering these mounds and the lower parts of the bushes with evergreen boughs will add protection. Pull the mounding material away from the stem as new growth emerges in spring. Prune injured branches over when new buds emerge in spring.
Maintenance & pruning: Prune to remove deadwood, to control or direct growth, and to promote flowering. Wait until growth breaks in early spring before pruning. Every 2 or 3 years, remove about one-third of the old branches to stimulate new, fresh growth. There is no need to remove faded flowers because these roses are self-cleaning.
Plant spacing is based on the ultimate width of the plants. This figure is normally given as a range; for example, 3-5’. If you live in a cold climate and/or want plants to fill in more quickly, plan to space at the shorter end of the range. If you live in a warm climate, are on a limited budget, or are willing to wait longer for plants to touch, use the higher end of the range. Using the larger number is recommended when calculating distance from a building or structure. There’s really no such thing as "maximum spacing": if you don’t want your plants to touch, you can space them as far apart as you’d like. All plant spacing is calculated on center, or in other words, the centers of the plants are spaced one half of their eventual width apart:
Unless you are planting in a straight line, as you might for hedges or edging, space your plants in a staggered or zig-zag pattern for a more interesting and naturalistic look:
Not sure just how many plants will fit in your garden? Our calculator gives you the exact amount of plants required for your space. Simply update the values and the calculator will re-calculate accordingly. Spacing information can be found in the 'How to Grow' tab on each plant's page.
I planted 10 of them fall 2024, most of them are coming along nicely. i had to replant 5 of them early summer due to weedeating disaster and they sre also doing great!
The plants were way too small for the price
Will not ever order from you again
We’re sorry you’re not satisfied with your plants! On each product page and our plant sizes page, we note that all of our plants are young. The size of our plants varies depending on the time of year and whether they were recently trimmed. The most important thing when purchasing plants, online or in garden centers, is a full and robust root system, which we prioritize. Trimming only encourages stronger root development! All orders are covered by our 60-day guarantee, so please reach out to [email protected] to start the claims process if necessary.
I have 10 yr old Knockout Single Roses + just added 3 more. Knockout out- performs all my other roses for blooming, hardiness, disease resistance. Use Neem Oil concentrate and nothing more for all my roses keeping them gorgeous.
I like the fast delivery!
Plant a bit small, but thriving
All three single knockout roses arrived in very good shape. All have bloomed already and are singles - I could only find doubles (an inferior plant) anywhere down here and am delighted with your roses.
I absolutely love my roses which are already growing! The invincibelle hydrangea needs a new name though!!! It's practically dead when arrived and not looking much better now. #Brokenhearted
Hi Erin! I am glad that your roses are doing well, but so sorry to hear about the hydrangeas. Please email pictures of the plants to [email protected], making sure to put your order number and name in the subject line. Rest assured, we have a 60-day guarantee on all our plants. If you received your plants within that timeframe, we will apply your warranty once we receive the pictures. https://bit.ly/ggp-guarantee
they are doing just fine.
easy to plant. grew fast. flowers already. we will see how much care they need over the winter.
Purchased 2 Knock Out Roses... All three are growing wonderfully and all three are flowering. Could not be happier with this result...
So fragile, it didn’t take once planted. I’ve tried everything to get it to take hold, no luck.
Hello! We're sorry to hear that you've had trouble with your Knock Out Rose. Please email pictures of the plant to [email protected], making sure to put your order number and name in the subject line so that we may provide the best assistance possible. Rest assured, we do have a 60-day guarantee on all of our plants. If you received your plants within that timeframe, we will be happy to apply your warranty once we receive the pictures. Happy Gardening!
They always come In excellent shape and a good size. 3 weeks later and they’re already getting bigger.
Beautiful. Nice size.
Knock Out® Rose
Thanks for taking the time to leave your review! Let us know if you ever have any questions, we're here to help. Happy gardening!
How big are the blooms
Knock Out® Rose's vibrant magenta blooms range in size from 1.5 to 2 inches in diameter.
what is best time to plant knock out roses?
The best time to plant Knock Out® Roses is in the spring after the last frost or in the fall at least 6 weeks before the ground freezes. This timing gives the roses a chance to establish their roots before either the heat of summer or the cold of winter sets in.
Can knock out roses be grown in partial shade?
The Knock Out® Rose grows best in full sun (> 6 hours sun) for the best flower production and disease resistance.
I am looking for something to grow in a pot on my patio. I am in zone 6a. Will this thrive in a pot or does it need more room? Thank you!
Yes, you can grow Knock Out® Roses in containers! Just make sure to choose the right size container. You can find more information on that in our gardening article:
https://blog.greatgardenplants.com/what-size-pots-should-i-use-for-container-plantings/
There is no mention of fragrance
Single knock out ?
Hi there! Knock Out roses have a light, floral scent typical of roses.