The French lavender has gray green narrow but thick leaves, 1 to 1½" long, with characteristic square teeth on the edge. The fragrance of this species is between a true lavender scent and a pungent rosemary fragrance. Usually not used in culinary.
Genus Notes - Lavandula
The name of this genus was derived by the Romans from the Latin lavare, "to wash", in recognition of its common use in soap and various toiletries
Throughout the sixteenth and seventeenth centuries, the English sought to remedy a host of bodily and psychic ills with Lavender. And today, this plant continues to delight gardeners due to its drought-tolerance, ease of care, and sheer beauty, whether in the ground or in dried arrangements.
People think of Lavender as an herb used in potpourri and sachets, but it's also an outstanding garden plant with spikes of fragrant flowers in midsummer. Lavender loves dry heat and hates extreme humidity and wet soil. It is excellent for fresh cut or dried flowers.