There is a good reason for naming these plants as such. Knockout roses were developed by the Wisconsin botanist William Radler, who was searching for a resilient and disease-resistant rose bush. Compact and bushy, Knockouts are surprisingly undemanding and easy to care for. They grow up to about three to four feet tall and maintain a wide rounded shape, thus forming a bushy plant.

Rose experts consider the knockout rose as among the longest-blooming flowering shrubs. Despite its low maintenance nature, it still requires basic nurturing for you to enjoy the beauty and elegance of these roses. Some growers of knockout roses recommend to skip the first season pruning for these roses, thus letting them grow first into the rounded and bushy shape that they were intended to have. If you want to employ this method, you may begin pruning right after the first bloom flush of the second year. Small pruning is enough to give the roses a chance to bloom even more. In fact, you do not need to do some major pruning for these roses are self-cleaning, meaning they do not need dead-heading. There are also some gardeners who plant the rose and then forget about it until the first bloom.

Knockout roses thrive under light shade or under good sunlight. You also take care to keep the soil well drained and fertile. Water only at the base to keep the foliage dry. Even though they are resistant to most diseases, this will still help in preventing fungal disorders.

When planting knockouts, do not plant them too far from each other. They can look bare during winter so you might consider placing them with winter plants like evergreens so your garden still looks beautiful during winter when the knockout roses are on their seemingly hibernating state. You can also place the roses beside a wisteria tree or in rows so they appear like a border or hedge. You can also plant them in containers and place them on your patio or decks.

Among the varieties of knockouts include the double knockout rose variety, which is naturally resistant to diseases and pests that normally attack other rose varieties. This plant continues to bloom throughout the year and can stand long periods of rain, drought, or extreme heat or cold. Whether you live in Florida or in Canada, double knockout roses can thrive in any environment.

Another drought-tolerant variety that grows very fast is the sunny knockout rose. They have lemony yellow flowers that are bright yellow when they first open up then turn to soft buttery blue when the flowers age. If you live in cold climates, these knockouts can also adapt to your weather condition.

Other knockout varieties that you can find in http://www.brighterblooms.com include double pink knockout rose and white out rose, the tree versions of knockouts namely red and pink knockout rose trees, and the single red knockout rose.