Troubleshooting
French Tarragon problems — and how to fix them
French Tarragon (Artemisia dracunculus 'Sativa') is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Root rot from overwatering
The most common killer; wet, heavy soil rots the roots, particularly over winter. Plant in sharply drained, gritty soil, water sparingly, and never leave pots in standing water.
Decline and weak flavour over time
Clumps lose vigour and flavour after a few years and become congested. Divide and replant every 2-3 years in spring to rejuvenate and maintain strong aroma.
Winter loss in cold or wet
It can die in waterlogged ground or unusually severe winters despite needing a cold rest. Improve drainage and mulch the crown lightly, or overwinter a division under cover.
Confusion with Russian tarragon
Seed-grown 'tarragon' is usually flavourless Russian tarragon, not the culinary French form. Buy named plants or take cuttings from a known French tarragon, since true tarragon sets no viable seed.
Prevent french tarragon problems before they start
Most french tarragon issues are care-mismatch, not bad luck. Dial in the basics:
- Common french tarragon problems — the species this cultivar belongs to
- Common french tarragon problems — our other guide for the same plant
- What's wrong with my plant? — the diagnosis apps compared
- French Tarragon watering schedule
- French Tarragon light requirements
- Best soil mix for french tarragon
- French Tarragon temperature & humidity
- Full french tarragon care guide
Looking for french tarragon in general rather than its problems? Read the full french tarragon care guide — light, water, soil and feeding.
French Tarragon problems — FAQ
Why is my french tarragon root rot from overwatering?
The most common killer; wet, heavy soil rots the roots, particularly over winter. Plant in sharply drained, gritty soil, water sparingly, and never leave pots in standing water.
Why is my french tarragon decline and weak flavour over time?
Clumps lose vigour and flavour after a few years and become congested. Divide and replant every 2-3 years in spring to rejuvenate and maintain strong aroma.
Why is my french tarragon winter loss in cold or wet?
It can die in waterlogged ground or unusually severe winters despite needing a cold rest. Improve drainage and mulch the crown lightly, or overwinter a division under cover.
Why is my french tarragon confusion with russian tarragon?
Seed-grown 'tarragon' is usually flavourless Russian tarragon, not the culinary French form. Buy named plants or take cuttings from a known French tarragon, since true tarragon sets no viable seed.