Introduction & History

French Tarragon is the undisputed king of the French herb garden — its refined, anise-scented leaves are essential in béarnaise sauce, fines herbes, and the subtle, aromatic cuisine that defines haute cuisine. Unlike most herbs, French tarragon cannot be grown from seed (it's sterile), making it a plant that must be passed from gardener to gardener through cuttings and divisions — an aristocratic lineage befitting its culinary status.

History & Origin

The cultivated, sterile form likely originated through centuries of selection in Central Asian or Mediterranean gardens. The name 'dracunculus' (little dragon) may refer to the serpentine root system. French cuisine adopted it by the 16th century, and it became central to classical French cooking. Auguste Escoffier enshrined it in béarnaise sauce. It remains one of the 'fines herbes' alongside parsley, chervil, and chives.

Botanical Description

Herbaceous perennial growing 40–60 cm tall with upright, branching stems. Leaves are narrow, smooth, glossy green, 2–5 cm long, and intensely aromatic — a refined, sweet anise-like scent quite different from the pungent bite of Russian tarragon. The plant rarely flowers, and when it does, the flowers are sterile (no viable seed). Spreads slowly by underground runners. The flavour is complex: anise, vanilla, and pepper notes.

Planting & Cultivation

Plant nursery divisions or rooted cuttings in spring, spacing 30–40 cm apart. NEVER grow from seed — seed-grown 'tarragon' is always the vastly inferior Russian tarragon. Full sun, well-drained soil. Protect from cold, wet winters with gravel mulch. A warm, sheltered spot is ideal. Verify authenticity by tasting a leaf — French tarragon has a strong, sweet anise flavour that numbs the tongue slightly.

Cultivation Details

Full sun, well-drained soil (add grit to heavy soil). Do not fertilise — lean soil produces the most aromatic foliage. Divide every 3–4 years to maintain vigour — old plants decline. The key cultivation challenges are winter survival (cold, wet conditions kill it) and ensuring you have the true French variety, not Russian. The lack of seed means it must be propagated vegetatively.

Climate & Hardiness

Hardy to about −15°C (USDA zones 5–8). Dislikes cold, wet winters — drainage is more critical than cold hardiness. In zone 5, mulch with gravel and protect from winter wet. Handles summer heat well. In hot, humid climates (zones 8–9), it may be short-lived. Best in continental or Mediterranean climates with dry winters.

Seasonal Care

Spring: new growth appears (late — be patient). Summer: peak harvest season. Autumn: take cuttings for insurance; prepare winter drainage. Winter: protect crown from wet — gravel mulch, cloche, or container shelter. The plant can look dead in late spring but is late to emerge.

Propagation

By division of established plants in spring — the standard method. By stem cuttings (8 cm tips in moist compost in early summer). NEVER from seed — French tarragon is sterile. Any 'tarragon seed' is Russian tarragon. Root divisions should include runners with visible buds. Share divisions with fellow cooks — the only way to spread this plant.

Diseases & Pests

Root rot in wet, poorly drained soil — the primary killer. Rust occasionally. Aphids on young growth. Generally healthy when sited correctly. The main management challenge is keeping it alive through cold, wet winters rather than fighting pests.

Culinary Uses

The essential French herb. Béarnaise sauce is impossible without it. Central to fines herbes (with parsley, chervil, chives). Tarragon vinegar is a French kitchen staple. Excellent with chicken (poulet à l'estragon), eggs, fish, cream sauces, and mustard preparations. Tarragon butter melts over grilled steak. Add at the end of cooking — heat destroys the delicate anise oils. Pairs with chicken, eggs, fish, butter, cream, lemon, and mustard.

Medicinal & Aromatherapy

Contains estragole (methyl chavicol) — the compound responsible for the anise flavour. Traditional digestive aid and appetite stimulant. Mild analgesic — historically chewed for toothache. The essential oil is used sparingly in aromatherapy. Not a primary medicinal herb — its value is overwhelmingly culinary.

Container & Companion Growing

Container Growing

Excellent container plant — containers allow perfect drainage control, which is French tarragon's main requirement. Use 20+ cm pots with gritty, well-draining compost. Full sun. Water moderately. Move containers to shelter in winter. One of the best ways to grow French tarragon in cold, wet climates.

Companion Planting

Traditional companion in the French herb garden alongside parsley, chervil, and chives (fines herbes). Good near vegetables — the anise scent may deter some pest insects. Plant near salad crops for easy access when making vinaigrettes.

Common Mistakes to Avoid

Growing Russian tarragon from seed and expecting French tarragon flavour (the difference is dramatic). Not verifying the variety by tasting before purchasing. Planting in wet, heavy soil. Not dividing every 3–4 years (old plants decline and die). Drying it (freeze instead — dried tarragon is a shadow of fresh). Adding too early in cooking.

Harvesting & Preservation

Harvest sprigs from late spring through autumn. The anise flavour is most intense in warm weather. Use fresh whenever possible — the flavour diminishes significantly when dried. Freeze in ice cube trays with butter or olive oil for the best off-season quality. Infuse into white wine vinegar for tarragon vinegar (a classic French pantry staple). When drying, do so quickly at low temperature in a dark spot.

Frequently Asked Questions

Seasonal Care Calendar