History of Knock Out Roses:
This term actually refers to an entire family of seven roses, as well as being the name of a single variety. Created by legendary breeder Bill Radler and first sold on the market commercially in the year 2000, this first rose has easily broken all sales records for a new rose brought to market. It is said the development of this rose has singlehandedly brought the practice of rose genetics into the 21st century!
What makes Knock Out roses so special you might ask? Well for starters one of their chief advantages is that they require no special growing care and are incredibly easy to grow in most climates. They are supposed to be more resistant to diseases than any other rose currently available on the market today. They have incredible vigor and blooming capability, offering a bloom cycle roughly every 5 to 6 weeks, and they will continue to bloom until a true hard frost kills off the plant. These roses also claim to be self-cleaning which means you will not ever need to dead head them.
The First Knock Out Roses:
The rose that also bears this name was the first introduction to the family of roses. With its introduction came a new defining standard for roses and their resistance to diseases. This particular variety grows as a bush and will sport amazing cherry red to hot pink blossoms that like all the others in the family, continue to bloom until a hard frost. This variety is highly resistant to black spot and no matter what type of garden you would like to grow, this rose will fit into any landscaping ideas.
You can expect these Knock Out roses to grow about 3 to 4 feet high and about 3 to 4 feet across. Among its admirable qualities you can expect to see a multitude of flowers blooming through the growing season, it requires very little maintenance to perform, this variety is highly tolerant to drought conditions, it has a natural resistance to black spot and other diseases, and it is also self-cleaning so there is no need to dead head. This variety of rose is hardy in zones 5 through 11 and has foliage that is dark green and purple.
Double & Pink Knock Out Roses:
The same genetic cross that created the first rose also created this little beauty as well. This variety produces lush double flowers that have the same look at the original. Just like its predecessor it did not sacrifice performance for its added beauty. It is also highly resistant to black spot, but it is a little hardier to the cold than its older cousin. This plant is a classic looking rose bush with an added toughness that you are sure to fall in love with, what more can you ask for from a rose?
The pink Knock Out roses from this family are landscape bush roses, just like the original, only this one produces wonderful blooms of soft pink. The blooms on this variety will grow to roughly 2.5" to 3.5" across and produce about 7 to 11 petals per bloom. The bloom will form a flat cup and overall will have a slight fragrance, if any at all. This vigorous grower has deep mossy green foliage, is hardy in zones 5 to 11 as well, and you can expect this rose to grow about 3 to 4 feet tall and 3 to 4 feet across.
Just like the double red rose of this family, if you so desire there is a bubble gum colored double variety as well. This variety will form elegantly shaped classic blooms starting in early spring all the way through to the frost. Once established, this variety has an amazing tolerance for drought conditions. With the same resilience that the entire family of roses is known for, this bright and vibrant rose is sure to add a little flair to any garden you plant it in.
Rainbow and Blushing Knock Out Roses:
The rainbow rose in this family is a true stunner showcasing beautifully colored coral blooms that have yellow centers. This particular variety will grow just a little more compact than the other members in the family and you will rarely, if ever, see this little gem get afflicted with black spot. As new leaves grow they will start off with a deep burgundy color and over time will age to a dark green.
This sweet rose has very similar blooms to the original knock out, only this variety will start off as a light pink in color, then over time it will gradually fade away to a soft and subtle pink. Just as hardy and robust as all the others, this shrub rose is a wonderful plant to add to any of your gardens.
The Sunny Knock Out Roses:
This variety is the newest member of the knockout family and the only one of them to offer a fragrance. This variety will grow more compact, but also more upright, rising to a height of about 3 to 5 feet, with the same 3 to 4 feet spread. What makes this rose stand out are the bright yellow blooms it produces. These gorgeous flowers will quickly fade into a soft creamy pastel forming an elegant contrast. The cooler the air temperature is, the longer these blooms will hold onto their yellows.
What makes Knock Out roses so unique is how easy they are to care for when compared to other roses. These roses can go unpruned all season and will grow to roughly the same size of 3 to 4 feet across and 3 to 4 feet high. It is suggest by the breeder that you give them a cut one time per year in the early spring, after the last frost, down to about a foot above the soil.
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