Can I grow rosemary from a cutting?
Written by
Michael Sullivan
Reviewed by
Prof. Charles Hartman, Ph.D.For gardeners at home, rosemary propagation from cuttings is a much more successful route than using seeds. Late spring, when the plants are actively growing, is the best time to take three-inch softwood stems. This route will give you mature plants faster and maintain the original plant characteristics you love, such as flavor and cold hardiness.
Cutting Selection
- Choose healthy green stems without flowers or buds
- Snip 3-4 inch sections just below leaf nodes
- Use sharp sterilized shears for clean cuts
Rooting Process
- Dip cut ends in rooting hormone powder
- Plant in perlite-peat mix (50/50 ratio)
- Maintain 70-75°F (21-24°C) with humidity dome
Aftercare
- Provide bright indirect light for 6 weeks
- Water sparingly keeping soil barely moist
- Transplant when roots reach 1-2 inches long
I start dozens of cuttings each year, and when I made the switch to humidity domes, the success rate went from 30% to 90%. Humidity domes are essentially mini-greenhouses that keep moisture from evaporating away. Mist daily and avoid keeping the soil too wet, as this can cause the cuttings to rot.
Select the correct rooting medium for the best success. Do not use pure potting soil, as it tends to remain excessively wet. My preferred mix includes perlite, peat moss, and coarse sand. This allows good drainage while keeping moisture for root growth.
Time transplantation carefully. Wait until a network of roots has developed and extended well beyond the original growing medium. Gradually acclimate the plants to outdoor conditions over at least seven days. Once they are outdoors, young plants should be treated with care during the first month to protect them from the direct sun and wind.
Read the full article: 7 Essential Steps: How to Grow Rosemary Perfectly
