Lavender plants are popular for their herbal qualities, fragrance and bold color. The herb flowers on new growth, so pruning each year will produce a bountiful supply of lavender in the summer. Pruning each year will also prevent the center of the plant from splitting and becoming woody. Knowing how to go about this will keep the plant healthy and thriving for years.
Time the pruning properly. The best time to prune lavender is in late summer or early fall after flowering.
Wipe the pruning shears' blades with a rag soaked in rubbing alcohol. This will disinfect them and prevent the spread of disease among your plants.
Cut back approximately one-third of the top growth of all the branches. This will keep the foliage dense and reinvigorate the plant each year.