Overview
Uses: Foundation plantings, flowering hedges, mass plantings, mixed borders, and landscape focal points.
Benefits: Rich red blooms that deepen with age, self-cleaning flowers (no deadheading), and strong resistance to common rose diseases. Attracts pollinators and hummingbirds all season.
USDA Hardiness Zones: 5–11
Sun: Full Sun
Life Cycle: Deciduous Shrub
Growth Habit: Upright, Rounded — dense, uniform mounding form.
Bloom Color: Red
Mature Height: 3–4'
Mature Width: 3–4'
Bloom Season: Summer to First Hard Frost
Growth Rate: Moderate to Fast
Summary
All the color of a classic rose, without the extra work.
The Red Knock Out® Rose delivers continuous, saturated red blooms through the heart of the growing season and into frost. Its tidy, rounded habit makes it easy to design with—whether you’re building a low hedge, anchoring a foundation bed, or creating a bold swath of summer color.
With strong disease resistance and self-cleaning flowers, it’s a dependable choice for low-maintenance landscapes that still want high-impact bloom.
Care
Red Knock Out® Rose Care
Plant in full sun for best bloom production and overall plant health.
Prefers well-draining soil. Water regularly during the first growing season to establish a deep root system. Once established, it tolerates short dry periods, though consistent moisture supports best flowering.
Feed in early spring with a balanced
slow release fertilizer
to encourage vigorous growth and repeat bloom.
Prune in late winter or early spring to shape and refresh growth. Deadheading is not required.
Mulch around the base to retain soil moisture and reduce weeds.
Size
What Size is the Red Knock Out® Rose for Sale Online?
Plants ship in a greenhouse-grade grow pot at an actively growing stage. Size at shipment varies seasonally. For current sizing details, please
contact us
.
How Large Does Red Knock Out® Rose Grow?
At maturity, this shrub typically reaches 3–4 feet tall and 3–4 feet wide, forming a full, rounded landscape presence.
Additional Information
What is the botanical name of Red Knock Out® Rose?
The botanical name is Rosa ‘Radred’.
What are some common names for this plant?
Common names include Red Knock Out® Rose and Knock Out® shrub rose.
Is Red Knock Out® Rose deer resistant?
Roses are not reliably deer resistant, but browsing pressure varies by location and season. If deer are a consistent issue in your area, you may want to compare options from our
Deer-Resistant Plants
collection.
What makes Red Knock Out® Rose a good low-maintenance rose?
This rose is valued for its repeat bloom, self-cleaning flowers (no deadheading), and strong resistance to many common rose diseases, making it an easy fit for busy gardens.
Where can I find more roses like this?
Browse additional colors and growth habits in our
Roses
collection.
