‘Rosa’ Double Knock Out Rose

April 3, 2008 · Filed Under Online Sales · Comment 

Rosa Double Knock-Out Rose from Park SeedIf you long to have beautiful roses in your garden, but you’ve heard that they are hard to grow, Rosa Double Knock Out ‘Radtko’ is the perfect answer. This rose is so disease resistant, that it even avoids the dreaded scourge of BlackSpot. It just keeps going and growing, even with neglect. Imagine how big and gorgeous this can get if you treat it well!

Even more compact and shade-tolerant than it’s sister rose, the famous original Knock Out, it’s ideal as a low hedge! The family of Knock Out roses just may be the best landscape roses ever developed.  Not only is it a tireless bloomer all summer and into fall, but it is terrifically resistant to blackspot and other diseases and keeps its healthy foliage in any climate.  As a BONUS, Radtko has DOUBLE-flowered blooms and even greater shade tolerance than the original!

These blooms of shiny fire-engine red are about 2 1/2 inches wide and just keep blooming and blooming from early summer till frost. Most are fully double, some semi-double, with an average petal count of 18 to 25. These blooms are all high-centered in the classic Rose form. And best of all for beginners, there’s NO need to deadhead this lively shrub. The flowers on Radtko just keep coming no matter what! This one is a winner!