English lavender (Lavandula angustifolia) and French lavender (Lavandula stoechas) belong to the same genus, Lavandula, but are distinct species. English lavender is native to the Mediterranean region, particularly the mountainous areas of Spain, France, and Italy. French lavender, despite its name, is also Mediterranean in origin but thrives in warmer, coastal climates. The two species differ in their growth habits, hardiness, and preferred environments.
English Lavender: This species is characterized by narrow, silvery-green leaves and compact flower spikes that are typically purple or blue-violet. The flowers grow on long, slender stems and lack the prominent bracts (leaf-like structures) seen in French lavender. The plant grows to about 1–2 feet tall and forms a dense, bushy shape.
French Lavender: French lavender has broader, gray-green leaves and shorter, stouter flower spikes topped with showy, butterfly-like bracts, often in shades of purple, pink, or white. The flowers are smaller and less densely packed compared to English lavender. The plant tends to be taller, reaching up to 3 feet, with a more open growth habit.
English Lavender: Known for its sweet, floral, and slightly herbaceous scent, English lavender is the preferred choice for essential oil production and culinary uses. Its oil contains high levels of linalool and linalyl acetate, compounds responsible for its calming and therapeutic properties.
French Lavender: The fragrance of French lavender is stronger, more camphoraceous, and less sweet, with a sharper, medicinal note. Its oil has higher concentrations of camphor and cineole, making it less desirable for aromatherapy or cooking but useful in insect repellents and cleaning products.
English Lavender: This species is cold-hardy, tolerating temperatures as low as -10°F (-23°C), making it suitable for temperate climates. It prefers well-drained, slightly alkaline soil and full sun. Overwatering or high humidity can lead to root rot.
French Lavender: French lavender is less cold-tolerant, thriving in USDA zones 7–9. It requires hot, dry conditions and is more resistant to drought and poor soil. However, it is sensitive to frost and may not survive harsh winters without protection.
English Lavender: It blooms once per year, typically in late spring to early summer, with a shorter flowering period of 3–4 weeks. With proper care, it can live for 10–15 years, becoming woody with age.
French Lavender: This species has a longer blooming season, often flowering from late spring to early fall, especially in warm climates. However, it is generally shorter-lived, lasting 3–5 years before needing replacement.
English Lavender: Ideal for hedges, borders, and formal gardens due to its uniform growth and classic appearance. It is also popular in herb gardens and for dried flower arrangements.
French Lavender: Often used in ornamental gardens for its striking bracts and prolonged blooms. It works well in containers, rock gardens, or as a focal point in Mediterranean-style landscapes.