January 2nd, 2021


Shrub Rose


Modern shrub roses are typically hardy, healthy and attractive with great repeat flowering or continuous flowering in a wide variety of colours. The multi-award winning ‘Knock Out’ set a new standard in disease resistance with very little maintenance required and was recognised as a breakthrough landscape rose worldwide when it was released 20 years ago.  Knock Out is extremely hardy, Black Spot resistant, drought tolerant and self-cleaning.  Record-breaking sales have earned it the reputation as the world’s number one Rose Brand, which is out-selling other roses by far.

Knock Out now offers a complete range of Knock Out varieties (a total of 11 varieties in all). The collection in Australia now includes Knock Out, Double Knock Out, Pink Knock Out, Pink Double Knock Out, Blushing Knock Out and most recently a fragrant Sunny Knock Out released in 2020, (and more to follow). In the USA, the 11th variety is another innovation, named ‘Petite Knock Out’ the first miniature in the series released last year.  Website:

The original ‘Knock Out’ was bred by amateur rose breeder Will Radler in the USA in 1989 and was introduced in 2000. It is a cherry-red, hardy shrub rose with abundant and continuous flowering and deep green foliage. The bush reaches 1.2m x 1.2m.  The Knock Out roses have bushy growth, disease resistant foliage, large flowers, beautiful buds and bloom constantly in our region, creating a brilliant garden display.

Knock Out is available from Knight’s Roses and Wagner’s Rose Nursery in South Australia and Roses and Friends in NSW. Also, through garden centres across SA (Lewis Horticulture & Adelaide Plant Growers supply commercially to all sectors).


Gold Medal  National Rose Trial Garden of Australia Adelaide 2005

All America Rose Selection Winner American Rose Society USA, 2000

Hall of Fame  World Federation of Rose Societies, 2018

Text: Kelvin Trimper