🌿 French Tarragon

What it looks like

Why this variety

French tarragon is the plant behind every great béarnaise, and it has a secret that every gardener needs to know before buying: it never, ever grows from seed. True French tarragon is sterile, propagated only by cuttings and division, which means any seed packet labeled French tarragon is selling you something else — usually Russian tarragon, its coarse, nearly flavorless cousin. Buy a plant, from a nursery you trust, and guard it jealously.

The flavor is the reason for all this fuss. French tarragon tastes of anise and vanilla and warm pepper, a perfume that survives cooking in a way few herbs manage, and it is the defining note of béarnaise, fines herbes, and chicken dishes across French cooking. Russian tarragon tastes like a rumor of that flavor. Once you have cooked with the real thing, the difference is not subtle.

In Florida, French tarragon is a pot plant with a mission. It hates wet summer soil and humid nights more than it hates cold, so a pot with gritty mix, morning sun, and afternoon shade is the difference between a plant that thrives and a plant that rots by August. Treat it as a treasure, not a bedding plant, and it repays you for years.

For the general picture, start with the Tarragon growing guide — this guide covers what makes French Tarragon different.

How to grow

Plant in spring in a pot or raised bed with sharp, gritty drainage — mix perlite or coarse sand into your potting mix until it feels almost too loose, because for tarragon, too loose is just right. Give it full sun in mild climates, and morning sun with afternoon shade in Florida, where brutal afternoon heat on wet soil is the killer combination.

Divide established plants every two to three years in spring, and take cuttings in early summer to keep young plants coming on — division is not just propagation, it is rejuvenation, and an old, woody tarragon plant divided in spring comes back vigorous. Cut plants back by a third after the first flush to force tender new growth.

Florida note: grow French tarragon in a pot you can move, keep it out of summer downpours where possible, and do not overwater — when in doubt, skip a day. In north Florida it may overwinter outdoors in a sheltered spot; everywhere else, the pot comes under cover for freezes and stays there until spring warmth returns.

Water & feeding

Water modestly and never let the roots sit wet — tarragon’s great weakness is soggy soil, and in humid summers that weakness becomes fatal fast. Give it sharp drainage, sandy or gritty soil, and a pot if your garden holds water after rain. Water when the soil dries an inch down, feed lightly with compost or worm castings in spring, and skip heavy fertilizer, which grows lush, flavorless growth. Mulch lightly to keep roots cool, but keep mulch off the crown, where trapped moisture invites rot.

Common problems

• Root rot in wet soil — the number one tarragon killer, especially in summer rain. Pots with drainage and gritty mix are the Florida answer.
• Rust and mildew in humid weather — improve airflow, water at the base, and cut out badly affected stems; do not overhead-water in the evening.
• Winter wet in cold zones, and summer wet in warm ones — tarragon wants its feet dry in both seasons. Raised beds help everywhere.
• Flavorless plants sold as French tarragon — true French tarragon never grows from seed, so a seed packet labeled French is selling you Russian. Buy a plant from a reputable nursery.

Harvest

Snip sprigs as needed from year two onward, harvesting lightly in the first year while the plant establishes. Cut in the morning, when the oils are strongest, and use fresh for sauces — fresh French tarragon is the gold standard, and no dried substitute matches it.

Dry or freeze surplus at peak flavor, before the plant flowers or stresses, because tarragon’s perfume fades fast once the plant is unhappy. Frozen tarragon, chopped and frozen in oil or water, keeps its anise note better than dried, which is the backup singer, not the star.

Snip sprigs as needed through the growing season, and cut plants back by about a third after the first flush to force tender new growth — tarragon cut hard in summer comes back bushier, not weaker. Dry or freeze the surplus at peak flavor, because tarragon’s anise perfume fades fast once the plant is stressed or flowering. Fresh sprigs are the gold standard for sauces; dried tarragon is the backup singer, not the star.

Saving seeds

French tarragon never grows from seed — true French tarragon is sterile, propagated only by cuttings and division, and any seed packet labeled French tarragon is selling you Russian tarragon instead. The Propagation section of the Tarragon guide covers propagation for the species generally.