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- Rosa x ‘Radrazz’ Knock Out® PP#11,836 CPBR#: 0,993
- USDA Hardiness Zones: 5a to 11b
- The original Knock Out® shrub roses set a new standard in disease-resistance with little to no maintenance on this reblooming rosebush. Knock Out® roses flower almost constantly from late spring until frost with rich, cherry red-pink blooms. They are blackspot-resistant, drought-tolerant, and do not require pruning to rebloom.
- 2000 ARS Winner
- Need a friend for this plant? Check out these great additions:
- Razzle Dazzle® Diamond Dazzle® Dwarf Crapemyrtle
- Sunrosa™ Fragrant Pink Rose, Groundcover Rose
- Not quite what you are looking for? Check out these great products!
- Double Knock Out® Rose, Shrub Rose
- Sunrosa™ Red Rose, Groundcover Rose
- Woody Ornamentals - Knock Out Rose - Flowering Shrubs
- Growth Size: Medium Shrub - 4 tall, 4 wide
- Growth Habit: Rounded - Vigorous
- Features: Easy to Grow, Sun Loving
- Disease Resistant, Black Spot Resistant, Drought Tolerant (once established), Heat Tolerant, Mildew Resistant
- Attracts:
- Garden Ideas:
- Entryway, Cottage, Formal
- Flower features: Long Flowering, Continuous Flowering, Profuse flowering, Brilliant Colors
- Rich blend of cherry-red and hot-pink flowers that bloom in spring through fall
- Foliage type and color: Deciduous, Dark Green
- Deep green with purplish new growth
- Landscape Uses: Grouping, Foundation, Hedges, Beds
- Accent, Border, Container, Mass Planting, Specimen
- Knock Out® Rose is a Low maintenance plant
- Growth Size: Medium Shrub - 4 tall, 4 wide
- Growth Rate: Fast
- Spacing: 3-4 ft apart
- Exposure: Full Sun
- Watering: Waterwise
- Soil Types: Adaptable to pH Well-Drained Enriched with organic matter
- General Plant Care: Even low-maintenance roses should be monitored for pests, such as aphids, and diseases, such as black spot. A systemic rose care product used according to package directions may help address issues. Watering at soil level instead of on leaves and maintaining good air flow around the plant may also help prevent problems.
- General Planting Tips: Container-grown roses can be planted at any time, but bare-root plants should be planted while dormant, in fall through early spring. Dig a hole as deep and twice as wide as the container or root system. Plant roses in containers as you would any shrub. For bare-root roses, build up a cone of soil in the center of the planting hole. Soak the roots well in water, then place on the cone with the roots fanning around from the base. Backfill with soil and water well. Add additional soil if needed to keep level with surrounding soil. Mulch with 2-3 inches of organic mulch, keeping away from trunk of plant.
- General Fertilizing Tips: Roses are heavy feeders, and do best with multiple applications of fertilizer specifically formulated for roses several times per year, according to package directions.
- General Pruning suggestions: Roses should be pruned in late winter, just before spring leaf growth begins. Roses are vigorous growers, and respond well to heavy pruning. Remove any old, weak, diseased, or crossing canes by cutting back to the ground, leaving only 3-4 of the most vigorous, younger canes. Prune those canes to be 12-18 inches tall, cutting just above a leaf bud facing to the outside of the plant. Most roses rebloom best when faded flowers are cut back after blooming.
- Bloom Tips: Remove flower stalks after blooms have faded
