How to Grow Ground cover herbs

Wikimedia Commons

Ground cover herbs

Various species (e.g., Thymus vulgaris, Origanum vulgare, Satureja montana)

herb

Ground cover herbs are low-growing, spreading herbaceous plants that form dense mats of foliage, effectively suppressing weeds while providing culinary, medicinal, and ornamental value. These hardy, drought-tolerant plants are ideal for creating living carpets in gardens, between pavers, on slopes, and in containers. They typically reach 3-12 inches in height and spread 12-36 inches depending on the variety.

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Example Ground cover herbs timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Ground cover herbs

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Ground cover herbs

    Late summer into fall

    Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Ground cover herbs dates for your own zip code.

Growing Conditions

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Sun: Full sun, 6-8 hours daily (minimum 4 hours for partial shade varieties)
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Water: Low to moderate water needs once established; water deeply but infrequently to encourage deep root systems; reduce watering in winter; avoid waterlogging
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Spacing: 6-18 inches apart depending on species and desired fill speed inches
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Days to maturity: 30-90 days for usable foliage; full ground cover establishment 6-12 months
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Planting depth: Surface to 0.25 inches for seeds; plant transplants at same depth as container

Soil

Type: Well-draining sandy or loamy soil
pH: 6.0-7.5
Amendments:
Perlite or coarse sand for drainage Compost (minimal) Gravel mulch

Growing Zones

Find your zone →

Varies by species; most thyme varieties thrive in zones 3-9, oregano in zones 5-10, creeping savory in zones 4-9

3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b

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Growth Stages

1

Seedling

2-4 weeks

Tiny cotyledons emerge; plants develop first true leaves and begin forming shallow root systems

Keep soil consistently moist but not waterlogged; provide bright light; thin seedlings to prevent crowding

2

Juvenile/Establishment

4-12 weeks

Plants develop multiple stems and begin horizontal spreading; foliage becomes denser; roots deepen

Reduce watering frequency as roots establish; pinch tips to encourage bushiness; apply light mulch around plants

3

Vegetative Growth

2-6 months

Vigorous spreading and mat formation; dense foliage covers soil; plants reach mature width and density

Water only during dry spells; trim edges to control spread if needed; light feeding with balanced fertilizer

4

Flowering

4-8 weeks

Small flowers (white, pink, purple, or yellow depending on species) appear on stem tips; foliage remains lush

Deadhead for continued foliage production or leave flowers for pollinators; light shearing after blooming maintains form

5

Mature/Maintenance

Ongoing (perennial)

Fully established ground cover providing year-round foliage, seasonal flowers, and continued spreading

Minimal watering except in drought; light annual pruning in spring; harvest regularly for culinary use

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Moisture-loving plants (hostas, astilbes) Heavy feeders (tomatoes, corn) Plants requiring frequent watering (hydrangeas, azaleas) Shade-preferring plants in full-sun locations

Common Pests

  • Spray with water to dislodge; use neem oil if severe; improve air circulation; avoid overhead watering

  • Ensure good air circulation; avoid wetting foliage; apply sulfur dust or baking soda spray; remove infected leaves

  • Prune affected areas; spray with horticultural oil in dormant season; encourage natural predators

  • Improve drainage; avoid overwatering; remove waterlogged plants; use well-draining soil amendments

  • and

    Remove debris and dense mulch that provides shelter; hand-pick; use beer traps; copper tape barriers

Uses

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Seasoning & Cooking

Culinary

Ground cover herbs like thyme, oregano, and creeping savory provide fresh or dried culinary herbs for soups, stews, roasted vegetables, pasta, and meat dishes. Leaves can be used fresh, frozen, or dried for year-round flavor. [source]

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Herbal Remedies & Infusions

Medicinal

Many ground cover herbs contain antimicrobial and antioxidant compounds; thyme and oregano traditionally support respiratory health and digestion as teas or infusions. Some species have been used in traditional medicine for wound healing and inflammation. [source]

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Pollinator Support

Wildlife

Flowering ground cover herbs provide abundant nectar and pollen for bees, butterflies, and other beneficial insects throughout the growing season. Dense foliage also offers shelter for ground-dwelling beneficial insects. [source]

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Natural Pest Deterrent

Household

Aromatic ground cover herbs release volatile oils that naturally repel aphids, mosquitoes, and other garden pests, reducing need for chemical controls. Dried herb bundles can freshen indoor spaces. [source]

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Dried Herb Crafts & Arrangements

Craft

Dried ground cover herb flowers and foliage are excellent for potpourri, dried flower arrangements, herb wreaths, and craft projects. Their delicate blooms and colorful foliage add texture and color to arrangements. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Harvest leaves in the morning after dew dries but before heat; pinch tips to encourage branching and fuller growth; harvest no more than one-third of plant at a time; can harvest year-round from established plants; dry leaves by hanging in bundles or spreading on screens in warm, airy location

Fun Facts

  • 🌱 Creeping thyme has been used for centuries to create fragrant 'thyme lawns' in European gardens and can tolerate light foot traffic, making it a living alternative to grass in small areas.
  • 🌱 Oregano derives its name from Greek words meaning 'mountain' and 'joy,' and was considered a symbol of happiness and fertility in ancient Mediterranean cultures.
  • 🌱 Ground cover herbs can suppress weeds so effectively that they reduce weed seed viability by up to 90% compared to bare soil, eliminating the need for many chemical herbicides.

Gardening Terms

New to gardening? Learn about terms used in this guide:

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