French Thyme

Family: Lamiaceae Herb

Planting Schedule

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Aromatic as a sunlit garden path—French Thyme releases a bright, savory fragrance with a gentle, slightly sweet lift.

Its fine, narrow leaves form a tidy, evergreen mound of tender sprigs, ideal for gathering again and again as new growth keeps coming. Grow French Thyme for flavorful seasoning in everyday savory dishes, from roasting blends and herb sauces to marinades and pickling brines where its classic, steady character shines.

Light: Full SunMaturity: 60 DaysHabit: Upright

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French Thyme Planting Dates by USDA Zone

Estimated US hardiness-zone windows for sow, transplant, and harvest. Enter a US ZIP above for exact local dates, or open a zone below.

Zone	Start Indoors	Sow / Transplant	Harvest
Zone 1a	Apr 20th	Jun 15th	Aug 14th – Jul 15th
Zone 1b	Apr 6th	Jun 1st	Jul 31st – Aug 1st
Zone 2a	Mar 30th	May 25th	Jul 24th – Aug 29th
Zone 2b	Mar 20th	May 15th	Jul 14th – Aug 25th
Zone 3a	Mar 20th	May 15th	Jul 14th – Sep 1st
Zone 3b	Mar 24th	May 19th	Jul 18th – Sep 21st
Zone 4a	Mar 20th	May 15th	Jul 14th – Sep 24th
Zone 4b	Mar 18th	May 13th	Jul 12th – Sep 27th
Zone 5a	Mar 13th	May 8th	Jul 7th – Sep 30th
Zone 5b	Mar 9th	May 4th	Jul 3rd – Oct 5th
Zone 6a	Mar 6th	May 1st	Jun 30th – Oct 10th
Zone 6b	Feb 28th	Apr 25th	Jun 24th – Oct 16th
Zone 7a	Feb 23rd	Apr 20th	Jun 19th – Oct 20th
Zone 7b	Feb 13th	Apr 10th	Jun 9th – Oct 28th
Zone 8a	Feb 4th	Apr 1st	May 31st – Nov 5th
Zone 8b	Jan 26th	Mar 23rd	May 22nd – Nov 12th
Zone 9a	Jan 9th	Mar 6th	May 5th – Nov 26th
Zone 9b	Dec 15th	Feb 9th	Apr 10th – Dec 9th
Zone 10a	—	Oct 1st	Nov 30th – Feb 28th
Zone 10b	—	Oct 1st	Nov 30th – Feb 28th
Zone 11a	—	Oct 1st	Nov 30th – Feb 28th
Zone 11b	—	Oct 1st	Nov 30th – Feb 28th
Zone 12a	—	Oct 1st	Nov 30th – Feb 28th
Zone 12b	—	Oct 1st	Nov 30th – Feb 28th
Zone 13a	—	Oct 1st	Nov 30th – Feb 28th
Zone 13b	—	Oct 1st	Nov 30th – Feb 28th

Crop Details

Trait	Value
Days to Maturity	60
Sun Requirements	Full Sun
Growth Habit	Upright
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	70
Min Soil Temp (°F)	60
Min Night Temp (°F)	50
Harden Off (days)	7

Culinary Notes

Chef's Note

French thyme is all about a clean, fragrant lift over a steady savory backbone—its fine leaves release fast when warmed, so it stays aromatic in reductions and marinades. Chop lightly and let it bloom in hot fat (oil or butter) before adding liquids to keep that sunlit perfume from fading.

Best Uses

rubbing and stuffing—slip sprigs into roast poultry or pork where the oils perfume the fat
quick infusions: simmer in stock or make a hot herb oil for finishing
marinades and brines—partner with salt for a steadier, more even flavor curve
herb sauces and pan reductions—chopped thyme to keep aroma punchy without bitterness

Flavor Profile

bright herbal aromatics savory, lightly sweet finish fine-leaf texture that clings to fat and liquids earthy thyme-resin backbone

Kitchen Pairings

lemon olive oil butter chicken mushrooms

Frequently Asked Questions

What pests or diseases commonly affect Thymus vulgaris (French thyme), and how do I control them?

French thyme (Thymus vulgaris) is prone to fungal root/collar rot when soil stays wet, and it can also be hit by aphids on new growth. Let the soil dry slightly between waterings and grow it in well-drained soil; avoid overhead watering to reduce leaf moisture. If aphids appear, rinse them off with a strong jet of water and repeat every few days for a week, and remove heavily infested tips.

How often should I water French thyme during active growth, and what soil moisture level should I aim for?

During the main growing phase, water only when the top 1 inch (2–3 cm) of soil feels dry, then water deeply so moisture reaches the root zone. Aim for consistently well-drained soil—French thyme prefers evenly moist but not wet conditions, and frequent light watering can keep the root zone damp and increase rot risk. In hot weather, this often becomes about weekly watering for established plants, but always adjust to how quickly your soil dries.

How can I tell when French thyme is ready to harvest (Thymus vulgaris)?

You can start light harvesting once plants are well established (often around 6–8 weeks from sowing), but the best harvest is when stems are firm and leafy and plants reach about 6–8 inches tall, typically near 60 days to maturity. Harvest in the morning and cut just above woody stems, taking the top growth without stripping the plant. Stop major harvests about 2–3 weeks before your first expected frost to let new growth harden.