High Desert Plant Finder & Guide
Coral Knock Out® Rose
Rosa 'Coral Knock Out'
Coral Knock Out® Rose flowers
(Photo courtesy of NetPS Plant Finder)
Height: 5 feet
Spread: 5 feet
Hardiness Zone: 4
Group/Class: Shrub Rose
Brand: Knock Out Roses
One of the most popular roses in the world today, primarily due to its low maintenance, superior disease resistance and incredibly long period of bloom, with seemingly endless brick orange to coral flowers; all roses need full sun and well-drained soil
Coral Knock Out® Rose is smothered in stunning lightly-scented orange flowers at the ends of the branches from late spring to mid fall. The flowers are excellent for cutting. It has attractive dark green foliage which emerges coppery-bronze in spring. The glossy oval compound leaves are highly ornamental but do not develop any appreciable fall color. The fruit is not ornamentally significant. The spiny brick red bark adds an interesting dimension to the landscape.
Coral Knock Out® Rose is a multi-stemmed deciduous shrub with a more or less rounded form. Its average texture blends into the landscape, but can be balanced by one or two finer or coarser trees or shrubs for an effective composition.
This shrub will require occasional maintenance and upkeep, and is best pruned in late winter once the threat of extreme cold has passed. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;
Coral Knock Out® Rose is recommended for the following landscape applications;
- Mass Planting
- General Garden Use
Planting & Growing
Coral Knock Out® Rose will grow to be about 5 feet tall at maturity, with a spread of 5 feet. It tends to fill out right to the ground and therefore doesn't necessarily require facer plants in front, and is suitable for planting under power lines. It grows at a fast rate, and under ideal conditions can be expected to live for approximately 20 years.
This shrub should only be grown in full sunlight. It does best in average to evenly moist conditions, but will not tolerate standing water. It is not particular as to soil type or pH. It is somewhat tolerant of urban pollution. This particular variety is an interspecific hybrid.
Please note: Our Plant Guide is all about plants that will work in the high desert. It is not, nor is it intended to be, a current list of plants in stock on hand at each location or at our farm. We purposely do not sell or ship plants via the internet. Plant questions and availability are best determined in-store.