USDA Plant Hardiness Zones: English lavender plants are perennials for planting zones 5-8. The "French" variety (Lavandula stoechas) prefers a warmer climate; it is not as cold-hardy. But in spite of its common name and its hardiness, L. angustifolia, like its French cousin, is native to the Mediterranean.
French lavender works well in mild, Mediterranean climates in U.S. Department of Agriculture plant hardiness zones 8 through 11 where some types bloom most of the year. Soil and Water Lavender needs full sun and soil that is very well drained.
Lavandula angustifolia Vera is a compact plant that blooms in early summer with an abundant crop of thin, highly fragrant flower spikes with dark blue calyxes and lavender corollas (flowers). English Lavender plants look stunning when planted with Oriental Poppies (Papaver), Yarrow (Achillea), MIlkweed (Asclepias) and Montbretia (Crocosmia).