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Knockout rose care-rose bushes that bloom ALL summer!

Updated on October 15, 2013

A blooming Knockout Rose bush


  • It's a shrub rose bush
  • At full maturity it's about 3 feet wide and 3 feet tall
  • It blooms from spring through fall
  • It has cherry red flowers in clusters of 3-15
  • The foliage is glossy green with hints of burgundy
  • Wide varieties range in colors of reds, delicate pinks and fluorescent pink
  • Self cleaning and doesn't require dead heading
  • Low maintenance
  • Hearty and disease resistant

Care and maintenance

Knockout Roses don't require much care. In fact, once planted and established, you really won't have anything to do but admire their beauty.

Lighting-The most important thing to consider when buying and planting this lovely is location, location, location! They do require a decent amount of sunlight. So make sure you put them in a location that gets at least 6 hours or more of full sun each day. This will keep them happy and healthy and blooming for years to come.

Planting-Once you've determined where you want to put this plant, dig a hole about twice as wide and twice as deep as the container it is in. Make sure to loosen the soil at the bottom of the hole you've dug, so that it's nice and aerated. Next, place the plant into the hole you've dug ensuring the base of the plant is level with the soil. Add soil in and around the hole of the plant, you can add in any manure or peat moss at this point if you wish. You do not need to compact the soil around the plant. Get it full and keep it light. Now that you have it planted, give it a good drink of water, water it from the base, don't spray the water directly on the plant and leaves. I've found that Knockout roses don't like to be watered like that. They prefer to be watered from the base. A good drink of water is about 10 seconds of watering, count to ten as you water it, then stop. Over the next few weeks, check in on your plant and water as needed until it is established. You can also really help this plant by placing a thin later of mulch around the base. This helps it retain moisture and also discourages any nearby weed growth.

Pruning-Knockout Roses are the least likely of the rose family to encounter disease and pests. They are highly resilient. They don't require "dead heading", and are self-cleaning. They bloom every 5-6 weeks, starting in spring until the first frost of the season. You can however prune them if you choose which will encourage new growth, while also providing you with fresh cut blooms to place in and around your home.

Spacing-Spacing depends upon how you wish to use this plant in your landscape. If you want a hedge look, space Knock Out rose plants 5 to 6 feet apart. If you want individual plants, space them 6 to 8 feet apart. However, be aware that If it isn't trimmed, it can grow taller and wider.

Pruning your Knockout rose

The beauty of a Knockout rose will knock you out!

This is a great plant for a new gardener, or someone who wants color without the maintenance. Enjoy fresh pretty blooms the majority of the year and brighten your landscape easily with the Knockout rose.

This plant will require little of you in return for years of beauty.


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