First introduced in 2000, the Knock Out Rose has earned a reputation as a game-changing flower. With its low-maintenance care and stunning blooms, it’s no wonder the rose is beloved by both beginners and seasoned gardeners.
Marking its 25th anniversary this year, the Knock Out Rose remains one of the most popular and reliable rose varieties. Let’s explore why it’s considered such an extraordinary addition to any garden.
Why the Knock Out Rose Stands Out
“The Knock Out Rose has become a staple in gardens nationwide,” says Bradd Yoder, President of Star Roses and Plants. “Its resilience and ease of care have made it a favorite among hobbyists and professionals alike. Its 25-year success story highlights its timeless charm and robust genetics.”
Unlike traditional roses, the Knock Out Rose is exceptionally low maintenance. It doesn’t require fertilization or deadheading and is highly resistant to common rose diseases like black spot and powdery mildew. Its cold-hardiness means it needs little winter preparation, making it ideal for gardeners in various climates.
While not all Knock Out Roses are fragrant, two standout varieties—Sunny Knock Out and White Knock Out—offer both beauty and a pleasing scent. Introduced in 2006 and 2018 respectively, these varieties add an aromatic dimension to the iconic family.
Year-Round Blooms
Knock Out Roses deliver consistent blooms throughout the year, far surpassing many other rose varieties. Plant them in spring or fall, and you’ll enjoy flowers from the growing season until the first frost. The plants produce both small bursts and large waves of blooms, with each flower lasting up to six weeks. Depending on your region, they may even bloom continuously in warmer climates.
A Legacy of Innovation
Developed in the 1980s by rose breeder William Radler, the Knock Out Rose became widely available in 2000. Its vibrant colors, hardiness, and extended blooming season quickly made it a nationwide favorite. Over the years, the family of Knock Out Roses has expanded to include a variety of sizes and colors, such as the Petite Knock Out, perfect for small spaces or decorative containers.
The family continues to grow, with new additions like Easy Bee-zy and Orange Glow introduced in 2024. Currently, there are 12 Knock Out Rose varieties, with more expected in the future as rigorous testing ensures each new type meets the high standards of the brand.
How to Grow Your Own Knock Out Rose
Knock Out Roses thrive in USDA Hardiness Zones 4-11. They require six to eight hours of full sun and neutral pH soil. Whether planted in containers or garden beds, these roses are versatile and straightforward to grow. With minimal effort, you can transform your outdoor space into a vibrant, blooming paradise.
Celebrate the Knock Out Rose’s 25-year legacy by bringing its beauty and reliability to your own garden. Whether you’re a beginner or an experienced gardener, this iconic flower is a joy to grow and a true testament to the evolution of modern roses