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Silver-Edged Lemon Thyme

Thyme
Zone 10b Save Garden

Planting Schedule

Add Silver-Edged Lemon Thyme to your garden to build a schedule and get reminders.
Botanical illustration of Silver-Edged Lemon Thyme
60d to harvest

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.

Crop Dates

Growing note: In frost-free Zone 10b, grow this cool-season crop during the cooler dry season (October–February).
MilestoneDate
Start Indoors—
ClimateFrost-Free Climate
Transplant / Sow OutdoorsOct 1st
Harvest BeginsNov 30th
Harvest EndsFeb 28th

Crop Details

TraitValue
Days to Maturity60
Sun RequirementsFull SunFull sun
Growth HabitUpright
Support NeededNone
Planting DepthNormal
Germination Temp (°F)70
Min Soil Temp (°F)60
Min Night Temp (°F)50
Harden Off (days)7

Today's Conditions

Outdoor planting for Silver-Edged Lemon Thyme in Zone 10b typically begins around 2026-10-01. Wait until soil reaches at least 60°F before transplanting Silver-Edged Lemon Thyme.

Garden Alerts

In frost-free Zone 10b, grow this cool-season crop during the cooler dry season (October–February).

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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.
Botanical illustration of Silver-Edged Lemon Thyme

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.

Today's Conditions

Outdoor planting for Silver-Edged Lemon Thyme in Zone 10b typically begins around 2026-10-01. Wait until soil reaches at least 60°F before transplanting Silver-Edged Lemon Thyme.

Garden Alerts

In frost-free Zone 10b, grow this cool-season crop during the cooler dry season (October–February).

Sowing Tips

Soil Temperature

Direct sow or transplant when soil at planting depth holds 60°F for reliable germination and early growth.

Expert Note

Start thyme lightly (don’t bury seeds deeply), keep seedlings on the dry side, and transplant only after nights are reliably warm for strongest establishment.