|'The Original' Knock Out rose|
|The 'Pink' Knock Out rose; image from Conard-Pyle Co.|
|The 'Sunny' Knock Out rose; image from Conard-Pyle Co.|
|The 'Double' Knock Out rose; image from Conard-Pyle Co.|
|The 'Blushing' Knock Out rose; image from Conard-Pyle Co.|
|The 'Rainbow' Knock Out rose; image from Conard-Pyle Co.|
|A beautiful shot of the 'Pink Double' Knock Out rose; image from Conard-Pyle Co.|
So are Knock Out roses worth the hype? From my experiences, yes absolutely they are. Over time, they are becoming increasingly affordable too, thanks to the sheer volume of plants produced each year. I currently grow 'The Original' and 'Pink' Knock Out cultivars. This year, I am hoping to add, at minimum, 'Rainbow' since it is considered the most floriferous of the bunch, which is saying a lot since they all flower very well! I also will likely be adding a few more 'Pink' KOs, and may try out a Double too.
If you are interested in fragrance, you will want to seek out 'Sunny' for its good-quality, citrus-like fragrance which nicely matches its color and "sunny" disposition. 'The Original' is probably second best for its rather mild yet spicy-sweet scent. From my experiences, all of the cultivars have some degree of scent but 'Sunny' and 'The Original' are the only ones that seem readily apparent. As is the case with essentially all roses, the fragrance is strongest right before the petals fully open, just as they are transitioning from their more-columnar shapes to their wide, unfurled mature state.
So if you are looking for a low-maintenance, high-impact landscape plant that may live longer than you do, head to the nursery this spring and pick up any one of the seven Knock Out roses: you won't be disappointed!