Lavandin refers to Lavandula x intermedia, the hybrid cross of Lavandula angustifolia (‘English lavender’) and L. latifolia (‘French’ or ‘Spike’ lavender).
Lavandin crosses such as Grosso, Abrialii, and Seal have been grown for decades (if not centuries) worldwide for oil production. Lavandins generate higher yields than English lavender, and in many cases are more pest and disease resistant. The main difference in end product is that Lavandin oils have a higher camphor content than true lavender (angustifolia) oils. Lavandin hydrosol collected after making oil can be used as a deterrent to many household insects such as ants and fleas.
Lavandin plants make extremely effective hedges when planted closely as a row, and the long stems are excellent for crafting.