Knock Out Rose
Rosa Knock Out cultivars

This group of hardy, long blooming and disease resistant roses has made rose growing a more practical endeavor for busy home gardeners. Prior to the introduction of the first Knock Out rose, easy, disease resistant roses were hard to find. Roses commonly available required extensive maintenance for meager rewards of bloom.

The family of Knock Out roses now includes 7 distinct selections: the original red-pink single (Rosa ‘Radrazz’); Double Knock Out (Rosa ‘Radtko’) which is pink; Pink Knock Out (Rosa ‘Radcon’)- a paler single pink; Rainbow Knock Out (Rosa ‘Radcor’) which bears coral petals with a yellow center; Blushing Knock Out (Rosa ‘Radyod’) with pale pink flowers that fade as the petals age; and Sunny Knock Out (Rosa ‘Radsunny’) which is a light clear yellow which fades to cream.

These undemanding shrubs will grow 3-4' tall, but can be maintained smaller. Blooming will occur off and on all summer until hard frost. The hedge of Knock Out Roses that surrounds the elliptical lawn adjacent to the Winter Garden at Tower Hill began blooming in early June, rested a moment, and continued to flower until early November. Disease resistant.