Greenhouse Canada

Three new Knock Out Roses

February 28, 2017  By Dave Harrison

Feb. 28, 2017, West Grove, PA – Ten years since the last Knock Out® Rose introduction, Star® Roses and Plants has added three new colours – White Knock Out® Rose, Coral Knock Out® Rose and Peachy Knock Out® Rose.

“The standards for a Knock Out Rose are extremely rigorous, so it’s not often a potential introduction is even considered,” says Jacques Ferare, rose program director at Star Roses and Plants. “We’re thrilled to bring three colours to the series that growers, retailers and consumers have been waiting for.”

• White Knock Out® is an excellent shrub rose that stands out in the landscape with the contrast between pure white blooms and very dark green foliage. It blooms from spring through fall and maintains a compact habit. It has a very slight citrusy fragrance.

• Coral Knock Out® offers a new color addition to the Knock Out Family of Roses. The unique coral colour is even stronger in hot humid climates. It blooms from spring through fall and maintains an upright to rounded habit. Young foliage is bronze red, which accentuates the bold flower colour.


• Peachy Knock Out® blooms from spring through fall with attractive pink flowers. The overall colour effect is peach with the combination of pink petals that become yellow in the centre. The colour will be much more intense with the cooler temperature in the spring and fall. The colour can fade to blush with the onset of heat and humidity.

Two of these Knock Out Roses are unique though, explains Steve Hutton, president of Star Roses and Plants.

“The White Knock Out Rose lives up to the standards of other members in The Knock Out Family of Roses, in that it performs like a Knock Out in all regions. Unlike other members of the family, Coral Knock Out and Peachy Knock Out are regional Knock Outs,” he says. “During the selection process, these two cultivars performed at the level of a Knock Out in specific geographical regions.”

White Knock Out, Coral Knock Out and Peachy Knock Out are available now to growers.

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