Knockout, or Knock Out® roses are a family of shrub roses created by Will Radler for Star® Roses and Plants who are known for a wide variety of landscape roses, minis, and other plants. These are highly disease-resistant and bloom continuously throughout the season. These qualities make them perfect as flowering landscape shrubs that are fairly low maintenance.
Knock Out® roses, like most other roses, need plenty of sunshine (6 to 8 hours a day), well-drained soil, and regular watering and fertilizing. They should also be pruned in Fall and/or Winter to stimulate new growth. Because of their popularity, these roses are sold at many big box stores, such as Lowes, Home Depot, Krogers, and others. Knock Out® roses have their own special website, where you can find lots of care and feeding information!
To see the many colors available, check out their varieties page here: https://www.knockoutroses.com/family.