"Knock Out roses will bloom the best in locations ... will encourage quicker re-blooming," says Williams. Check your rose bush periodically in late winter and early spring. As soon as there ...
The Knock Out® Rose has become an icon in gardens and landscapes across the country” - Bradd Yoder, President of Star® Roses and PlantsWEST GROVE, PA, UNITED STATES, February 19, 2025 ...