Knock Out roses are known as low maintenance, easy-to-care-for plants. They can be planted anytime the ground is not frozen. In hot weather they will require a lot more water until they are established. When planted in the spring or fall they require little maintenance.
About this Author
Marci Degman has been a Landscape Designer and Horticulture writer for since 1997. She has an Associate of Applied Science in landscape technology and landscape design from Portland Community College. She writes a newspaper column for the Hillsboro Argus and radio tips for KUIK. Her teaching experience for Portland Community College has set the pace for her to write for GardenGuides.com.