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How to grow rosemary
Get a rosemary cutting.
Rosemary is easiest to grow from a cutting, rather than planting seeds. Visit a community garden and ask for a cutting, or ask a friend for a cutting of their plant.
After you find a rosemary plant, clip off a few 4 inch pieces to propagate. The best time to do this is in the late spring, but if you live in a warmer climate, this can be done during early autumn as well.