How to Grow Common Thyme
Thymus vulgaris
Common Thyme is a compact, drought-tolerant perennial herb thriving in full sun across USDA zones 5 to 9. Gardeners prize its aromatic leaves for culinary seasoning and its resilience once established in well-drained soil.
📷 Wikimedia CommonsStarting Common Thyme: indoors or direct sow?
🏠 Start indoors 4 weeks before your last spring frost, then move the seedlings outside.
Start seeds indoors four weeks before the last frost date and harden off seedlings gradually before moving them outdoors once soil temperatures have warmed sufficiently.
Soil, care & harvest
Prepare loose, well-drained soil with a pH between 6.0 and 8.0 before sowing. As an herb often started indoors or direct-sown after danger passes, you can start seeds inside four to six weeks before the last frost date for earlier blooms. Press seeds gently into the surface since they require light to germinate, then water lightly. Expect sprouts in fourteen to twenty-eight days.
Space plants nine to twelve inches apart to ensure proper air circulation and growth. While thyme needs no support due to its low height of six to twelve inches, keep soil moist during establishment but let it dry between waterings once mature. Apply a light layer of mulch to retain moisture without suffocating roots, and avoid heavy feeding as this species prefers lean conditions.
Prevent root rot by ensuring excellent drainage and avoid botrytis by improving air flow in humid weather; watch for rare spider mites or aphids. Harvest leaves after ninety to ninety-five days from sowing when growth is abundant. Snip stems just above leaf nodes, taking only what you need to encourage bushier plants throughout the growing season.
When to Plant Common Thyme
Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.
Companion Plants for Common Thyme
✓ Good companions
Repels cabbage loopers, aphids, and other brassica pests
Thyme repels cabbage worms, flea beetles, and other brassica pests
Helps repel flea beetles and other pests that commonly attack eggplant
Similar Mediterranean growing conditions and both attract beneficial pollinators
Thyme repels potato beetles and wireworms
Similar growing conditions and both repel cabbage moths and carrot flies
Thyme deters ants and other pests that damage strawberry plants
Thyme repels tomato hornworms and may improve tomato flavor
✗ Keep away from
May compete for nutrients and thyme's woody growth can overshadow basil
Different water and soil requirements, thyme may stunt cilantro growth
Thyme's strong oils may inhibit cucumber growth and development
Nutrition Facts
Per 100g serving (USDA FoodData Central)
