Knockout Rose Varieties

Knockout rose
Knockout rose is selling like hotcakes

It’s the latest entry into the rose family and its youth alone deserves a mention. I’m talking about the rose that has just about every rosarian talking: The Knockout Rose.

Perhaps the pure simplicity of this rose is what so inspiring to many. Indeed, its ease of growing is what attracts some. Either way, if you’re new to growing roses, it’s definitely a variety of rose you may want to think about adding to your garden.


Grows as a Shrub

The Knock Out rose grows as a shrub to about three feet tall and about the same dimensions wide. It products cluster of blooms — beautiful cherry red ones approximately three inches in diameter. And much to every rose lover’s delight, these blooms continue to repeat blossoming throughout the growing season. According to some rose experts, the Knock Out rose has one of the longest blooming flowers on the market today.

One Disadvantage

If this plant has a disadvantage, it’s the flower itself isn’t suited well to being a cut flower. It’s fragrance, moreover, is light and delicate, similar to the tea rose.

Developer, William Radler

William Radler
William-Radler-in-field-of-Knockout-Roses-Pinterest

This new rose — which many have even called revolutionary, is not much more than 20 years old — a mere child in the ancient rose family. The developer, William Radler, sought a rose which would be a hardy repeat bloomer. His development began with nearly 600 seedlings a year grown under fluorescent lights in his basement.

Crossed The Seedlings

Then, 1988, Radler crossed the seedlings of a variety called the Carefree Beauty with the Razzle Dazzle. Both of these plants are hardy ones. By the year 2000, the hybrid had won the prestigious All-America Rose award.

It took little time for the Knock Out Rose to take the country by storm. In its first year on the market, it became the fastest-selling new rose in history. More than 250,000 were sold in that initial year alone.

Rosarians Discover It

Red Double Knockout Rose
Red Double Knockout Rose by Tony Alter Flickr

As this particular variety of rose matures, and more rosarians discover it, you can imagine how it will grow in popularity. In the meantime, Radler is wasting no time developing sisters and cousins of this plant. He recently introduced the Double Knock Out rose.

If you’re thinking about starting out your rose-growing experience with this particular variety, you still need to provide it plenty of sunlight. The rose can thrive in some light shade. The plant, like all roses, needs fertile well-drained soil.

Put Among the Low Evergreen Shrubs

white knockout rose
white knockout rose is a rarity

And as shrub roses, their appearance in the wintertime isn’t all that pretty. That’s a definite consideration when you’re deciding just where in your garden to plant it. You may want to plant it among the low evergreen shrubs. In this way, you’re compensating for its winter nakedness.

Just as with any other shrub rose, you’ll want to prune it just before the new growth starts as well as throughout the growing season to control its size.

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