Propagating Knockout Roses from Cuttings: A Year in Pots First

Your broken Knockout stem can become a new plant, but the cutting needs a full year in a pot before facing North Carolina winters.

Propagation Reality

• Knockouts root readily from semi-hardwood cuttings
• New plants are tender—no cold hardiness until established
• Zone 6 NC winters will kill unestablished cuttings

Recommended Resource

Excellent step-by-step guide: rainyside.com/archives/cuttings.html

Key Steps Summary

1. Take 6–8 inch cutting from healthy cane (pencil thickness)
2. Remove lower leaves, wound base, dip in rooting hormone
3. Stick in sterile medium (perlite/vermiculite mix)
4. Cover with humidity dome (plastic bottle/bag)
5. Bright indirect light, consistent moisture
6. Roots in 4–6 weeks
7. Pot up, grow in container 12+ months
8. Plant out next spring after frost

Scale Tip

Take 10+ cuttings—50% success is typical. One broken stem = one attempt. For "Knockouts everywhere," buy bare-root in bulk—cheaper, faster, uniform.

Propagation is rewarding but slow. Your yard will fill faster with purchased plants.