French lavender thrives in well-drained, alkaline to neutral soil in a sunny, sheltered spot. It’s less hardy than English lavender, so in colder regions, grow it in pots that can be moved to an unheated greenhouse or conservatory over winter.

Water sparingly, as it dislikes soggy roots, especially in winter. After flowering, remove faded flower stems to encourage a neat shape, and in spring (around April), lightly trim back the previous year’s growth, being careful not to cut into old wood, as this may prevent regrowth.

Mulching with gravel rather than organic matter can help keep the base dry and protect the roots from excess moisture.