I have created a hedge with 27 plants. All plants, except one, but the ants fell victim, are well grown and flourish now after only a few weeks. One should always pay close attention to the different sub-types when buying lavender. Angustifolia Munstead is a robust, hardy cultivar, which is about 45 cm high and dense growing. Promote the planting something horn chips or lavender fertilizer to do in the earth, because then doubled or the size of the plants in my experience tripled quite fast.