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Knock Out Rose Varieties

April 02, 2021

Knock Out roses are among the most popular landscaping plants in America. You may be familiar with the original, single-petal Knock Out rose. Meet the rest of the Knock Out rose family and get some tips on using them in your landscape.

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Photo: Star Roses and Plants

Knock Out Rose

Here it is, the rose for the rest of us. Since its introduction in 2000, the original Knock Out rose has been one of the best selling landscape plants in the United States. The mid-sized shrub is beloved because it made rose-growing easy. The Knock Out produces single petal red roses continuously for nine months, no deadheading required. And its resistance to black spot, that slayer of roses, is legendary. Its popularity led Star Roses and Plants to develop a dozen varieties of Knock Out roses in a range of colors, sizes and growth habits.

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Photo: Image courtesy of Star Roses and Plants/Conard-Pyle

The Double Knock Out Rose

Meet the most popular rose in the United States, the Double Knock Out. Its full, double flowers look just like classic roses, but the Double Knock Out can be grown with a lot less hassle. The shrub is famously resistant to black spot, the disease that has ended the life of many a rose bush. It produces cherry red blooms on a shrub that grows to 4 feet tall and 4 feet wide. It's a little more winter hardy than the original Knock Out rose, able to survive Zone 5 winters.

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Photo: Star Roses & Plants

Pink Double Knock Out Roses

The bubble gum-pink member of the Knock Out rose clan has big, double blooms that can stand up to heat and humidity without fading or wilting. Pink Double Knock Outs are very drought tolerant once established, so they're a good pick for hot climates that wither a weaker rose. Shrubs grow to 4 feet tall, producing mounds of bright pink blooms continuously from spring to fall.

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Photo: Star Roses & Plants

Petite Knock Out Rose

The Petite Knock Out Rose produces fire engine-red blooms that are just 1-1/2 inches in diameter on a compact shrub that grows just 18 inches tall and wide. Developed in 2020 by Star Roses and Plants, this mighty little plant packs the same disease-resistance as its bigger relatives. Its size lets you use it in landscape designs you can't do with a larger rose.

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