Creeping Thyme (Thymus serpyllum)

Creeping Thyme

Thymus serpyllum

Tiny aromatic leaves carpet the ground like living moss. Low-growing perennial herb; common names: wild thyme, mother of thyme.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Full sun to partial shade; thrives in bright, direct sunlight for most of the day
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Watering Allow the top 2–3 cm of soil to dry completely between waterings; highly drought-tolerant once established
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Temperature Hardy to -15°C; tolerates hot, dry summer conditions without significant stress
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Characteristics

  • Leaf: Small, oval, gray-green foliage with a pungent, herbal aroma when crushed
  • Flower: Dense terminal clusters of pale pink to purple tubular blooms that attract bees and butterflies
  • Stem: Prostrate, woody at the base, rooting at nodes to form a spreading mat
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Care Guide

Watering

Water occasionally during prolonged dry spells; avoid overwatering to prevent root rot

Fertilization

Light, low-nitrogen feed once at the start of the growing season. Use diluted, organic feed to preserve the plant's aromatic oil content

Eggshell powder topdress:Crush clean, dried eggshells into a fine powder; sprinkle lightly over the soil surface once every 6 months to enhance drainage without altering soil pH
Pruning
  • Trim back spent flower heads after blooming to encourage new foliage growth and prevent woody, leggy stems
  • Thin overcrowded patches in early spring to improve airflow and reduce pest risk
  • Cut back to 2 cm above the soil line in late winter to refresh dense, compact growth
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic; no reported adverse effects from ingestion

Humans: Non-toxic; edible as a culinary herb in small quantities

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Garden Uses & Culture

Culture: N/A

Usage: Culinary herb for seasoning, pollinator garden plant, low-growing ground cover