Doone Valley Thyme

Family: Lamiaceae Herb

Planting Schedule

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Breathe in the unmistakable, cool-mint perfume of Doone Valley Thyme—an aromatic creeping selection with a low, spreading habit and finely textured leaves that release their fragrance at every touch.

At maturity it forms a dense, mat-like carpet with tiny, lavender-pink blooms that add both color and pollinator appeal. Ideal for garden borders and rockeries, it’s a fragrant cornerstone for flavor-forward plantings and aromatic bundles throughout the growing season.

Light: Full SunMaturity: 90 DaysHabit: Spreading

Botanical illustration of Doone Valley Thyme

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Doone Valley 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	May 4th	Jun 8th	Sep 6th – Jul 15th
Zone 1b	Apr 20th	May 25th	Aug 23rd – Aug 1st
Zone 2a	Apr 13th	May 18th	Aug 16th – Aug 29th
Zone 2b	Apr 3rd	May 8th	Aug 6th – Aug 25th
Zone 3a	Apr 3rd	May 8th	Aug 6th – Sep 1st
Zone 3b	Apr 7th	May 12th	Aug 10th – Sep 21st
Zone 4a	Apr 3rd	May 8th	Aug 6th – Sep 24th
Zone 4b	Apr 1st	May 6th	Aug 4th – Sep 27th
Zone 5a	Mar 27th	May 1st	Jul 30th – Sep 30th
Zone 5b	Mar 23rd	Apr 27th	Jul 26th – Oct 5th
Zone 6a	Mar 20th	Apr 24th	Jul 23rd – Oct 10th
Zone 6b	Mar 14th	Apr 18th	Jul 17th – Oct 16th
Zone 7a	Mar 9th	Apr 13th	Jul 12th – Oct 20th
Zone 7b	Feb 27th	Apr 3rd	Jul 2nd – Oct 28th
Zone 8a	Feb 18th	Mar 25th	Jun 23rd – Nov 5th
Zone 8b	Feb 9th	Mar 16th	Jun 14th – Nov 12th
Zone 9a	Jan 23rd	Feb 27th	May 28th – Nov 26th
Zone 9b	Dec 29th	Feb 2nd	May 3rd – Dec 9th
Zone 10a	—	Oct 1st	Dec 30th – Feb 28th
Zone 10b	—	Oct 1st	Dec 30th – Feb 28th
Zone 11a	—	Oct 1st	Dec 30th – Feb 28th
Zone 11b	—	Oct 1st	Dec 30th – Feb 28th
Zone 12a	—	Oct 1st	Dec 30th – Feb 28th
Zone 12b	—	Oct 1st	Dec 30th – Feb 28th
Zone 13a	—	Oct 1st	Dec 30th – Feb 28th
Zone 13b	—	Oct 1st	Dec 30th – Feb 28th

Crop Details

Trait	Value
Days to Maturity	90
Sun Requirements	Full Sun
Growth Habit	Spreading
Support Needed	None
Planting Depth	Surface
Germination Temp (°F)	65
Min Soil Temp (°F)	45
Min Night Temp (°F)	35
Harden Off (days)	7

Culinary Notes

Chef's Note

Doone Valley Thyme is the kind of thyme that feels like perfume—fine leaves, loud fragrance, and a sharp herbaceous snap that stands up to heat. Use it early in cooking (or bloom it in warm oil) so its cool-mint edge shows before the earthier notes settle in.

Best Uses

quick-chop into pan sauces for lamb and pork
dry-rub + rest for roast chicken under the skin
steep into stock or tea-like infusion for herbal finishing
crumble into butter to melt over warm vegetables

Flavor Profile

cool-minty thyme aroma piney-herbaceous snap earthy bitterness with a faint sweetness fine-leaf texture that perfumes fast

Kitchen Pairings

lemon garlic honey olive oil lamb chicken

Frequently Asked Questions

What pest or disease commonly affects Thymus serpyllum (creeping thyme), and how do I treat it?

The most common problem is root rot from constantly wet soil, often showing up as wilting and blackening at the base. Improve drainage immediately, water only when the top 1/2–1 inch of soil is dry, and thin plants to increase airflow; if foliage looks infected, remove affected sections and avoid overhead watering. If you notice gray, fuzzy growth on stems, cut back infected tips and keep foliage dry to prevent spread.

How often should I water Thymus serpyllum during its main growing phase?

During active growth, water deeply but infrequently—typically once every 7–14 days depending on heat—so the soil dries slightly between waterings. Aim for dry, well-drained soil like a sunny rockery; thyme in Lamiaceae rarely needs frequent moisture and will struggle in waterlogged beds. After plants are established, reduce watering further and only supplement during extended dry spells.

How can I tell when Thymus serpyllum is ready to harvest (and for best flavor)?

Harvest once plants reach full, dense growth (about 90 days) and before they form many flowers; leaves are most aromatic just before flowering. You can snip sprigs any time, but for a peak harvest, take cuttings in the morning after dew has dried. If you want the strongest flavor, take a light first cut before most stems bloom, then follow with a smaller second harvest.