Two Lavenders

Most of the plants in my grandmother's Derbyshire garden seemed exhausted and almost visibly panting in the relentless sunshine and heat that has been blazing down these past weeks. But two plants were noticeably enjoying themselves in this most un-English climate: English lavender (Lavandula angustifolia), and its unrelated Mediterranean friend, cotton lavender (Santolina chamaecyparissus). Covered…