Blooming its heart out, Rosa Knock Out is a compact shrub rose which produces abundant clusters of single to semi-double, vibrant cherry-red flowers, up to 3.5 in. across (9 cm), adorned with up to 11 petals. The blossoms do not fade in the heat and stand out against the disease-resistant, dark purplish-green foliage. Blooming continuously from spring until frost, the flowers are followed by decorative orange-red hips. The foliage turns purple to burgundy in fall. Easy to grow, low maintenance, drought tolerant, and self-cleaning, this immensely popular shrub rose is an exceptional choice for the landscape and suits every garden and lifesytle.