Knockout rose varieties are popular among gardeners because they do not require the same amount of care as hybrid tea roses. In fact, they do not require any maintenance at all. The knockout rose varieties are resistant to black spot, are drought tolerant, do not require deadheading and do not require any special care to survive harsh winters. The knockout rose varieties bloom all season long until the first hard frost in fall.
The Double Knockout Rose
The double knockout rose is one of many knockout rose varieties. What makes the double knockout rose different is that the blooms are double, causing them to resemble hybrid tea roses instead of single old-fashion roses.
The double knockout rose is hardy in USDA zones 5 to 10. It will reach a height of 4 feet and a width of 4 feet.
To keep your double knockout roses happy, be sure to plant them where they receive at least six hours of sun daily. Like all roses, the knockout rose varieties should be planted where they will receive good air circulation.
The Rainbow Knockout Rose
The rainbow knockout rose was a 2007 All-America Rose Selection. Roses selected for this program are easy to care for, require little care and are proven to thrive in your garden.
The rainbow knockout rose is more compact than the other knockout rose varieties, although it will still reach a size of 4 feet high and 4 feet wide. The single blooms are coral pink with yellow centers.
The rainbow knockout rose is hardy in USDA zones 5 through 10.
The Sunny Knockout Rose
Anyone who has tried to grow a yellow rose in cooler climates knows this can be a difficult task to successfully achieve; however, the sunny knockout rose changes that. Of all the knockout rose varieties, the sunny knockout rose is the only fragrant one.
The blooms start out bright yellow. As the blooms age, they fade to a pastel cream color. The cooler the temperatures where you garden are, the more intense the yellow blooms will be.
The sunny knockout rose varieties will reach 5 feet tall and 4 feet wide. They are hardy in USDA zones 5 to 10.
These roses are bred to be pest-resistant, so there is no need for the normal sprays or fertilizers with systemic products integrated into them. Because of their breeding, knockout rose varieties do fine if they are grown with natural or organic methods.