Size
Rosa x ‘Radtko’ Double Knock Out® PP#16,202
USDA Hardiness Zones: 5a to 11b
From the same family as the original Knock Out® rose, Double Knock Out® rose boasts full, double flowers that look just like a classic rose. It is as resistant to blackspot as the famous original, has the same repeating bloom cycle from late spring to frost, and is slightly more winter-hardy.
Need a friend for this plant? Check out these great additions:
Blue Cascade® Distylium, Evergreen Distylium
Razzle Dazzle® Cherry Dazzle® Dwarf Crapemyrtle
Not quite what you are looking for? Check out these great products!
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
Fully double, cherry-red 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
Double Knock Out® Rose is a Low maintenance plant
Growth Size:   Medium Shrub - 4 tall, 4 wide
Growth Rate:   Fast
Spacing:   2-3 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
USDA Hardiness Zones: 5a to 11b

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