How to Grow Thyme
Thymus vulgaris
Thyme is a versatile perennial herb prized for its aromatic leaves and culinary versatility. Gardeners grow it to add flavor to dishes, create fragrant gardens, or attract pollinators. Its compact size makes it ideal for borders, rockeries, or containers on patios.
📷 Wikipedia: Thymus vulgarisStarting Thyme: indoors or direct sow?
🏠 Start indoors 6 weeks before your last spring frost, then move the seedlings outside.
If starting indoors, move seedlings outdoors only after all danger of frost has passed and soil temperatures have warmed sufficiently.
Soil, care & harvest
Prepare well-drained soil with a pH between 6.0 and 8.0, as thyme thrives in slightly acidic to neutral conditions. Since this is a perennial herb, you can sow seeds directly outdoors after the last frost when temperatures are consistently warm. Alternatively, start indoors 4-6 weeks before the last frost if your season is short. Press seeds gently into the soil surface; do not cover them deeply as they need light to germinate within 14 to 28 days.
Space plants 12 to 18 inches apart to ensure good air circulation and prevent disease. Thyme requires full sun, at least six hours daily, and low water; let the soil dry completely between waterings to avoid root rot. Apply a light layer of organic mulch to retain moisture and suppress weeds, but keep it away from the stems. Feed sparingly with a balanced fertilizer only if growth seems sluggish after the first year.
Watch for powdery mildew or aphids; prevent these by ensuring good airflow and avoiding overhead watering. Harvest thyme leaves when they are young and tender, typically starting at 85 to 95 days after sowing. Snip stems just above a leaf node to encourage bushy growth. You can also harvest regularly throughout the growing season once established, cutting back lightly in late winter to stimulate new shoots.
When to Plant Thyme
Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.
