HOW TO PROPAGATE LAVENDER FROM CUTTINGS - Works with rosemary also Taking cuttings from lavender is surprisingly very easy so long as you take them at the right time of year. Luckily you will get two bites of the cherry regarding this as you can take lavender cuttings either in the spring - just before the plant comes into flower, or in the autumn around august time.Lavender has been propagated by cuttings for thousands of years so I will keep the technique 'old school' because I know this way works. Using 3 inch terracotta pots, fill with a good quality compost such as John Innes 'Seed and Cutting' or you can make your own by mix approximately 3 parts peat moss with 1 part horticultural grit or vermiculite. The most important thing here is that the compost is well drained. Dampen the mixture then poke a small hole about 1 to 1½ inches deep into the soil into which you will plant your 'freshly -cut' cuttings.How to take a lavender cuttingTaking a cutting from a healthy mature lavender plant will not harm it, and besides - it will need to be cut back hard at the end of summer anyway to encourage strong healthy growth in the spring. Using a sharp, sterilised knife or secateurs, cut a small branch off the lower half of the plant that is about 3-5 inches long.Make sure that the branch is soft and not woody. Strip the bottom half of the cutting of leaves, place in the hole in soil that you prepared earlier then close the hole with soil. There is no need to use rooting hormones on lavender cutting, but no harm will be done if you are addicted to using it.Water your new plant thoroughly after planting. For the first couple of weeks keep the soil damp, but then water less frequently. At this point water when the soil begins to get dry, but before the plant displays any distress. Too much water will kill your new lavender plant. When attempting to propagate lavender, this is the most common mistake.After about 6 weeks you can move your new lavender plant to a larger pot or into the ground. If planting lavender in the ground, dig the hole about 1 ft wide and about 8 inches (20 cm) deep. Prepare the soil by mixing sand, peat moss or compost, and your native soil. It's most important that the soil drain very well. Fill the hole far enough with your soil mixture that the plant will be at the proper level when the hole is filled the rest of the way. Before filling add a teaspoon full of bone meal or another slow release fertilizer. After removing the plant from the small pot, pour a small amount of root stimulator on the roots, then cover with soil.