To insure continuous flowering, feed your roses with a fertilizer blended especially for Knockout roses after each bloom cycle (ie. 3% N, 4% P and 3% K with 9% Ca, 0.5% Mg and 1% S).

Q: My 'Double Knock Out' roses grow about 4 to 4-1/2 feet, taller than I want. Is there a shorter variety? Can I cut them back again now? — L.L. Houston A: Tags say it grows 3 to 4 feet, but ...

The Dirt On Drift Roses. Description • Perennial/evergreen shrub • Reaches 18 to 24 inches high; 2 to 3 feet wide • Cold Hardy to Zone 4 • Blooms three seasons: spring, summer and through ...

Q: My double Knockout red roses mostly look normal, but a few stems have big leaves and big thorns. Can I prune them back? If so, how far? A: I zoomed in on your photo, and I didn’t see any of ...