'Rainbow Knock Out' is a shrub rose with the classic single flowers that are common to species shrub roses. Unlike many shrub roses, it has an excellent rebloom cycle. The flowers, which appear in clusters, are coral in color, with yellow centers; the foliage is dark green and semi-glossy. 'Rainbow Knock Out' has the typical hardiness of species shrub roses—it is fully resistant to black spot, powdery mildew, and rust.
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Native Area: NA; this is a hybrid plant
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Height: 3 to 4 feet
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Sun Exposure: Full sun