Double Knock Out®

This rose's location in the garden is SW 05.

• Classification:  Shrub
  
• Flower Color:  medium red
• Flower Size:  3 inches
• Flower Form:  small clusters with classic, high-centered form
• Petal Count:  15-18
• Fragrance:  none to mild
• Repeat Bloomer:  yes
• Foliage:  small, medium green, semi-glossy
• Plant Height:  3-4 feet
• Plant Width:   3-4 feet
• Growth Habit:  bushy
• Disease Resistant:  very
• Hybridizer:  William Radler
• Registered:  2004
• Parentage:  ‘Carefree Beauty’ x ‘Razzle Dazzle’ x unknown seedling x unknown seedling
• ARS* Rating: 8.1 (a solid to very good rose)  
  *American Rose Society Rating

Awards:

• 2007  Gold Medal, Best Floribunda, Best in Trial—National Rose Trials (Australia)
• 2010 First Prize Floribunda—La Tacita International Trials for New Roses (Italy)
• 2011 Bronze Medal—Nagasaki Rose Trials (Japan)

Notes:

• “It’s been 20 years since William Radler introduced the Knock Out rose (2000), a rose whose self-pruning habits, generous blooms and disease-resistant properties quickly became the industry standard. In fact, Radler recently was named one of three winners of the 2020 Award of Excellence from St. Louis-based National Garden Clubs, Inc., the largest volunteer gardening organization in the world, for his creation that revolutionized the rose-growing and gardening industries.

• The royalties earned from the discovery of the Knock Out rose — which evolved out of Radler's hobby of cultivating and hybridizing roses — made the garden possible. “When Knock Out royalties started coming in, I decided that I wanted to create the garden of my dreams, and in 2009 the construction started,” he told a reporter visiting the property in Greenfield, Wisconsin, for the first time. Work on the garden is ongoing, but the 77-year-old has plenty of help. A staff of about a dozen people work to manage the gardens and grounds.” --- “Greenfield’s Will Radler” (July 8, 2020) at jsonline.com