Rose Double Knock Out®

Product Details

The cherry-red double blooms of Rose Double Knock Out® keep coming until hard frost, and its new growth is a stunning burgundy red. Aptly named, this popular successor to Knock Out® is a fuller and more floriferous shrub, producing clusters of 2½″ incandescent blooms with 18–25 petals. A hardy variety naturally resistant to black spot and other diseases and pests. Own-root. ‘Radtko’ PP 16,202.

Our rugged and heavy-blooming Shrub Roses are part of a new category called ‘Landscape Roses.’ The term means each of these plants is of such indomitable character it will thrive virtually unattended. Use multiples of the same variety to create superb hedges, ground covers, or foundation plantings; or give individual plants the prominent place they deserve in a mixed border.

For beauty and fragrance the rose knows few rivals. Roses have been cultivated for centuries; there are thousands of cultivars available and, often, an accompanying thicket of taxonomical jargon. Don’t worry about the terminology – the roses we elect to offer were chosen for their beauty, disease-resistance and vigor. Whether you’re looking for a rangy climber to run up a pergola or a petite specimen for a particular spot in the garden, we very likely have a variety to suit.

Roses require 6 or more hours of direct sun per day and fertile, reasonably moist soil. They benefit from an occasional feeding during the growing season. For more information on Rose care, please see the Growing Guide tab on this page.

Tip: We use as a foliar feed on Rose bushes in our trial garden and find plants are healthier and perform better throughout the season.