Blooming its heart out, Rosa Double Knock Out is a compact shrub rose which produces abundant clusters of fully double, vibrant cherry-red flowers, up to 3 in. across (7 cm), packed with up to 24 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 the fall. Easy to grow, low maintenance, drought tolerant and self-cleaning, this popular shrub rose is an exceptional choice for the landscape and suits every garden and lifestyle.