Silver-Edged Lemon Thyme

Family: Lamiaceae Herb

Sunlit and silvery, Silver-Edged Lemon Thyme releases a bright lemony perfume the moment you brush its foliage—an aromatic whisper with a clean, herbaceous backbone.

The leaves are small and tightly held, edged in cool silver and backed by a vivid green center, creating a dense, tidy mat that’s as beautiful as it is fragrant. Grow it for fresh fragrance in garden beds and containers, and for flavor-forward infusions, herb blends, and savory seasonings that benefit from its vivid citrus character.

Light: Full SunMaturity: 60 DaysHabit: Upright

Botanical illustration of Silver-Edged Lemon Thyme

Planting schedules and alerts are optimized for Columbus (Zone 6b).

Crop Dates

Milestone	Date
Start Indoors	Apr 11th
Last Frost	Apr 25th
Transplant / Sow Outdoors	Jun 6th
Harvest Begins	Aug 5th
Harvest Ends	Oct 16th

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

Silver-Edged Lemon Thyme hits with a citrus snap—aromatic up front, then that classic thyme sturdiness on the back of the palate. Use it at the end of cooking for maximum lemon perfume, or steep it briefly so the oil and alcohol carry the fragrance without turning bitter.

Best Uses

steep for lemon-thyme infused syrup or quick pickle brine
sprinkle chopped leaves into pan sauces and pan-roasted veg right at the end
bruise into herb butter for grilled chicken or fish
infuse olive oil for finishing over beans, lentils, and potatoes

Flavor Profile

bright lemony perfume tight, woody herb backbone small-leaf aromatic intensity clean, citrus-edged finish

Kitchen Pairings

garlic olive oil butter lemon zest white wine chicken

Frequently Asked Questions

What pest or disease issue commonly affects Thymus citriodorus (silver-edged lemon thyme), and how can I fix it?

Silver-edged lemon thyme commonly suffers from root rot and stem/collar problems when soils stay wet, especially in cool, poorly drained spots. Grow it in sharply draining soil, water only when the top 1–2 cm feels dry, and remove any plants with dark, mushy roots to prevent spread. If you see persistent gray fuzz or dieback, improve airflow and keep foliage dry, then cut back affected stems to healthy growth.

How often should I water silver-edged lemon thyme during its main growing phase?

During active growth, water deeply only when the top 1–2 inches (2–5 cm) of soil are dry, which is often every 7–14 days depending on heat and container size. Aim for an “in between” rhythm—thyme in Lamiaceae prefers dry-leaning conditions and will decline if kept constantly moist. In containers, ensure excess water drains fully and empty any saucer after watering.

How do I tell when silver-edged lemon thyme is ready to harvest?

Harvest once plants are established and at least about 8–10 inches (20–25 cm) tall, typically around 60 days from sowing for first cuts. Pick stems when they have lots of fragrant leaves but before heavy flowering; the essential oils are usually most intense just before blooms open. Snip non-woody growth (top 1/3 of stems), leaving the lower parts intact so the plant can re-sprout for repeat harvests.