Plant care

French tarragon (estragon) care

Artemisia dracunculus

Also called French tarragon, estragon.

Light

French tarragon is a sun-lover and needs the brightest spot in the home to thrive. 6 hours of direct sun. Indoors that almost always means a south or west-facing windowsill in the northern hemisphere. Plants moved abruptly from low light to direct sun will scorch — acclimate them over 7-10 days by giving a little more sun each day.

Watering

Water french tarragon weekly watering. The actual day count varies with pot size, light level, and the season — the finger test (or, better, lifting the pot to feel its weight) is more reliable than a calendar. Empty any drainage saucer after watering so the pot is never sitting in water. Drought-tolerant once established; avoid wet feet.

Soil and pot

French tarragon grows best in free-draining sandy loam. Lean soil; pH 6.5-7.5. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

French tarragon sits happiest at around 40-70% (outdoor) humidity and 15-24°C (60-75°F). Outdoor humidity rarely matters. If you keep the room above 15 year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed french tarragon sparingly. Compost in spring; minimal additional feeding. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on french tarragon in the Growli community. Each is annotated with the most common cause so you know where to start.

Tired and woody after years — Divide every 3-4 years to refresh.
Crown rot in wet soil — Plant on a slight mound for drainage.
Russian tarragon takeover — Confirm you have French tarragon — seed-grown plants are Russian and tasteless.
Yellowing leaves — Overwatering or too rich soil.
Aphids — Rinse or use horticultural soap.

Companion plants

French tarragon pairs well with Aubergine, Tomato, and Pepper. These are species with similar light and water needs, so you can grow them in the same bed or container without conflict.

Propagation

Stem cuttings or division in spring; never seed for French tarragon. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

French tarragon is mildly toxic to pets. Artemisia species contain estragole and thujone-related compounds. Considered mildly toxic to cats and dogs in large amounts; culinary use is safe. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

French tarragon care — frequently asked questions

What is the common name for Artemisia dracunculus?

Artemisia dracunculus is most commonly called French tarragon, but it is also known as French tarragon, estragon. The names refer to the same species, so care instructions for French tarragon apply identically to anything sold as estragon.

How much light does french tarragon need?

French tarragon grows best in direct sun (at least 4-6 hours). 6 hours of direct sun.

How often should I water french tarragon?

Water french tarragon weekly watering. Drought-tolerant once established; avoid wet feet. The finger-test (or lifting the pot to feel its weight) beats a fixed weekly calendar because pot size, light, and season all change how fast the soil dries.

Is french tarragon toxic to cats and dogs?

French tarragon is mildly toxic to pets. Artemisia species contain estragole and thujone-related compounds. Considered mildly toxic to cats and dogs in large amounts; culinary use is safe.

What USDA hardiness zone does french tarragon grow in?

French tarragon is rated for USDA zone 4-8 and RHS hardiness H5. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

French tarragon deep-dive guides

Every aspect of french tarragon care, each with its own calibrated guide:

Related guides

French tarragon is also commonly called French tarragon or estragon.