Developed in Wisconsin by Bill Radler to be disease resistant and very hardy, the Knock Out^® roses are now available in a number of colors, both single and double flowered. All have the everblooming character that will keep your yard in color from early summer until the last hard frost in fall. All offer the same solid resistance to black spot that made the first member of the Knock Out^® family an AARS winner. They are excellent as specimen plants or planted in mass. No spraying for diseases even in hot, humid climates. All of our plants are #1 field grown or 4" pots.