Shrub Rose 'Double Knock Out'

'Double Knock Out' (2004, Radler, PP16202) builds on the original 'Knock Out' with fully double, cherry-red blooms while retaining the same exceptional disease resistance and non-stop flowering.

• Family: Rosaceae
• Genus: Rosa
• Cultivar: 'Double Knock Out'
• Also known as: Radtko, Double Red Knockout
• Hybridized by: Radler
• Introduced: 2004

Key Features: Medium (3–3.5 inch), fully double, cherry-red blooms (18–25 petals) in continuous flushes spring to frost. Same glossy, disease-resistant foliage as the original. Rounded, bushy habit to 3–4 feet. Self-cleaning—no deadheading needed. Hardy in USDA zones 5–9. The double-flowered upgrade to a modern classic.

Landscape Uses: Mass plantings, hedges, foundation plantings, mixed borders, containers. All the toughness of 'Knock Out' with fuller blooms.