November 12th, 2022


Shrub Rose


Hardy, healthy and attractive with great repeat flowering or continuous flowering Knock Out® Roses have the most flower power of any shrub rose. It was inducted into the World Federation of Rose Societies Hall of Fame in 2018.

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 when it was released 22 years ago.  Knock Out is extremely tough, Black Spot resistant, drought tolerant and self-cleaning.  Record-breaking sales have earned it the reputation as the world’s number one Rose Brand.

Knock Out now offers a wide range of colours (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 a fragrant Sunny Knock Out released in 2020, (and more to follow).

The original ‘Knock Out’ was bred by amateur rose breeder Will Radler in the USA in 1989 and was introduced in 2000. It is cherry-red with abundant and continuous flowering and deep green foliage. The bush is 1.2m x 1.2m.  These 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. Also available from 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