Knock Out® Coral Rose Tree
Knock Out® Coral Rose Leaf
Knock Out® Coral Rose Additional Product Shot 3266
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Knock Out® Coral Rose Tree
Knock Out® Coral Rose Leaf
Knock Out® Coral Rose Additional Product Shot 3266

Growth Facts

Knock Out® Coral Rose

Rosa 'Radral' PP19,803

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A punch of color for your landscape! Coral Knock Out Rose is a vibrant, vivacious Accent that will make a big impact in your garden with its fragrant, floriferous display. In early summer, the double blooms burst open and keep on coming for months, until a hard frost finally shuts them down. A deep coral-orange color when unfurling, the blossoms eventually fade to a softer salmon-pink, and the multicolor effect at peak bloom is striking. Coral Knock Out belongs to a sturdy line of tough, disease-resistant, and cold-hardy Roses, so it’s also easy to care for and trouble-free. A winner by unanimous decision!

Growth Facts

The Story

In the early ’50s, a nine-year-old boy discovered a passion for Roses, and he bought and planted his first Rose bush. Later in life, he would revolutionize Rose-growing with his own breakthrough introductions. William Radler of Greenfield, Wisconsin, was a county parks worker for many years, until a love of Roses led him to a full-time career in plant-breeding. Making hundreds of crosses each year and starting the seedlings in his basement, he worked on producing new varieties that were extremely disease-resistant and also cold-hardy. His Knock Out series is the new standard in landscape Roses. Radler added Coral Knock Out to the collection in 2007.

The Details

Rose blossoms are usually most vivid when the plants are grown in cool, mild climates. Coral Knock Out is said to be an exception to the rule. In hot, humid climates, the pink-orange color actually intensifies!

How to Grow

Plant your Coral Knock Out Rose in full sun for the most abundant flowering. Provide regular water—about an inch per week of supplemental irrigation if no rain falls. Mulch with organic matter such as shredded bark, wood chips, or leaf mold to help keep the rootzone cool and moist. Soil should drain freely, however, and not stay soggy. Knock Out Roses are incredibly resistant to black spot and other diseases that typically attack Roses. You should not need to spray them. You may prune Coral Knock Out lightly at any time if you feel the need. A harder annual pruning in early spring will help keep plants smaller and neater.

Size Guide

Size Guide Scale

Scale

This graphic shows the approximate size and form of the Tree you are viewing.

Knock Out® Coral Rose Tree
Knock Out® Coral Rose Leaf
Knock Out® Coral Rose Additional Product Shot 3266