Rosa White Out Knockout®, also known as WhiteOut Rose, is a compact, deciduous shrub rose celebrated for its pure white, single blooms and excellent disease resistance. Blooming profusely from spring through frost, this low-maintenance shrub grows 3 to 4 feet tall and wide, providing continuous color and clean foliage in garden beds, borders, and containers.

While WhiteOut Rose is popular for its ornamental value and easy care, it is not a native species and offers limited ecological benefits when compared to native plants.

Why Choose Rosa White Out Knockout®?

• Profuse pure white blooms from spring through fall
• Highly disease-resistant with minimal maintenance required
• Compact habit ideal for borders, mass plantings, and containers

Cultivating Tips

• Plant in full sun with well-drained soil for best flowering
• Minimal deadheading required, but pruning in early spring encourages vigorous growth
• Water regularly until established; drought-tolerant once mature

Design Ideas for Your Garden

• Use in mass plantings for continuous color in borders or landscapes
• Plant in containers for patios and small spaces
• Combine with native perennials and grasses to increase biodiversity and support pollinators

Ecological Benefits

• Attracts some pollinators, but offers limited habitat support
• As a non-native species, provides minimal ecological value for local wildlife
• Native alternatives offer greater ecological benefits and support for pollinators and birds

Since Rosa White Out Knockout® is not a native species, here are three native alternatives available at Bumbee’s that provide ecological benefits:

• Clethra alnifolia – Summersweet: Fragrant white blooms attract pollinators; great for moist soils and shade gardens
• Chelone glabra – White Turtlehead: Upright white flowers support bumblebees and butterflies; thrives in rain gardens and wetlands
• Eupatorium perfoliatum – Common Boneset: Clusters of white flowers attract pollinators and beneficial insects; ideal for meadows and naturalized plantings