Experts and BHG readers answer.
How to propagate lavender?
Hi, Well actually the best way is to take cuttings, dip them in some rooting hormone, and place them in small pots or flats filled with a soilless seed starting mix. Keep them slightly moist and out of direct sunlight. I don't think they'll root if you try laying the branches down under rocks. That works for some shrubs and roses, but I don't think it will work with lavender.