[header] How to grow rosemary indoors [title] Select a strong, high-quality rosemary plant with recent growth. [step] The quality of the mother plant will determine the quality of the propagated plant. Recent growth indicates that the plant has not grown dormant, so you should be able to spur new growth from a cutting. 
[title] Snip several 2 1/2-inch (6 1/3-centimeter) stems from the rosemary. [step] Choose the most recently grown stems, since these have the greatest growing potential.