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Thymus Coccineus Group (Red Creeping Thyme)

Creeping Thyme Coccineus Group, Wild Thyme Coccineus Group, Red Creeping Thyme

AGM Award
Red Creeping Thyme, Creeping Thyme, Thymus Coccineus, Wild Thyme, Red Thyme, Groundcover, seaside plant, aromatic perennial, fragrant perennial
Red Creeping Thyme, Creeping Thyme, Thymus Coccineus, Wild Thyme, Red Thyme, Groundcover, seaside plant, aromatic perennial, fragrant perennial

Red Creeping Thyme (Thymus Coccineus Group): A Complete Guide

Red Creeping Thyme (Thymus Coccineus Group), also known as Thymus serpyllum ‘Coccineus’ or Thymus praecox ‘Coccineus’, is a vigorous, mat-forming perennial sub-shrub prized for its vibrant reddish-pink blooms and fragrant foliage. Belonging to the mint family (Lamiaceae), it is a top choice for sunny landscapes, offering ornamental beauty, drought tolerance, and ecological value. Unlike culinary thyme, Red Creeping Thyme is grown mainly for its ground-hugging habit, pollinator appeal, and ornamental interest.

Aside from creeping thyme, the Lamiaceae family includes other well-known culinary herbs such as rosemary, basil, mint, sage, and oregano.

Native Range

Red Creeping Thyme is native to Europe and Western Asia. It thrives in open meadows, dry hillsides, and rocky slopes where sunlight is abundant and the soil drains quickly.

Plant Type and Habit

This low-growing, spreading sub-shrub forms a dense, mat-like ground cover. It typically reaches 2–4 inches (5–10 cm) in height and spreads 8-12 inches (30–45 cm) or more over time. Its stems root as they spread, making it ideal for erosion control, walkways, and covering bare ground.

Flowers

Red Creeping Thyme showcases small, bell-like tubular flowers in vivid shades ranging from magenta to deep pink. Blooming from early to late summer, the blossoms typically form at the tips of upright stems but can also appear along the sides. Their high nectar content makes them especially attractive to bees, butterflies, and other pollinators.

Foliage

The foliage features tiny evergreen leaves that are dark green and occasionally glossy. Densely clustered, the leaves create a soft, ground-hugging mat that may take on bronze tones in autumn, depending on the climate. When touched or walked on, the leaves release a gentle herbal scent, making the plant especially appealing for use along paths and in rock gardens.

Hardiness

Red Creeping Thyme is hardy in USDA zones 5–9, tolerating temperatures as low as -20°F (-28.9°C). It tolerates cold winters, hot summers, and dry conditions once established. In colder climates, the foliage may brown in winter but recovers quickly in spring.

Award

Red Creeping Thyme is the recipient of the prestigious Award of Garden Merit of the Royal Horticultural Society.

Uses

  • Groundcover: Fills in spaces between stones, borders, and open soil with dense foliage and summer color. Colorful Creeping Thyme Varieties As Lawn Alternatives
  • Ornamental: Adds vivid contrast to garden beds, edges, and rock gardens with colorful flowers and texture.
  • Lawn Alternative: A low-maintenance substitute for grass in sunny, low-traffic areas.
  • Container Planting: Suitable for pots and troughs where its trailing habit spills beautifully over the edges.
  • Erosion Control: Useful on banks or slopes to stabilize soil with its dense, spreading roots.
  • Pollinator Garden: Attracts beneficial insects and supports biodiversity.
  • Fragrant Pathways: Releases a soothing scent when stepped on, ideal for sensory gardens or informal walkways.
  • Mosquito Repellent: Like other thymes, it helps repel mosquitoes with its fragrant essential oils.
  • Essential Oils: The essential oils found in the plant have been used for centuries in traditional medicine for a variety of purposes. The oils are said to have anti-inflammatory and antibacterial properties, and they have been used to treat respiratory conditions, skin irritations, and digestive problems.

Wildlife Value

Red Creeping Thyme is a pollinator favorite, providing nectar and habitat for bees, butterflies, and other beneficial insects. Its extended bloom time ensures continuous support for wildlife throughout the growing season.

Drought Tolerance

Once established, Red Creeping Thyme is drought-tolerant and thrives in dry, rocky, or sandy soils. It is an excellent choice for xeriscaping and low-water gardens.

Deer and Rabbit Resistance

The plant’s aromatic foliage deters deer and rabbits, making it a reliable choice in areas with wildlife browsing pressure.

Toxicity

Red Creeping Thyme is non-toxic to cats, dogs, and horses, according to the ASPCA. However, ingestion in large quantities may cause mild stomach upset in pets or people.

Invasiveness

Red Creeping Thyme is not invasive, but its spreading growth can cover large areas over time. Use edging or plant in open areas where spreading is desirable.


Benefits and Drawbacks of Red Creeping Thyme

Benefits

  • Attractive Ground Cover: Forms a dense, low-growing mat that adds vibrant color and texture to garden beds, borders, and paths.
  • Pollinator-Friendly: Its nectar-rich flowers attract bees, butterflies, and other beneficial insects, supporting garden biodiversity.
  • Drought Tolerant: Once established, it needs minimal watering, making it ideal for low-water or xeriscape gardens.
  • Fragrant Foliage: The aromatic leaves release a pleasant herbal scent when touched, enhancing sensory appeal.
  • Versatile Uses: Suitable for planting between stepping stones, in rock gardens, on slopes, or in containers.
  • Low Maintenance: Requires little care, with no need for mowing or frequent pruning.
  • Evergreen in Mild Climates: Provides year-round greenery in areas with milder winters.
  • Deer and Rabbit Resistant: Its strong aroma helps deter browsing animals, making it useful in wildlife-prone areas.
  • Medicinal Properties: Contains essential oils with traditional uses in herbal remedies for respiratory and skin conditions.

Drawbacks

  • Slow to Establish: May take one or two seasons to fully fill in and form a dense carpet, especially from seed.
  • Not Suitable for Heavy Foot Traffic: Can tolerate light walking but may become damaged in high-traffic areas.
  • Requires Full Sun: Performs best in bright light; shade can lead to weak growth and fewer flowers.
  • Susceptible to Root Rot: Poor drainage or excessive watering can lead to fungal diseases and root problems.
  • Weeding During Establishment: Until plants spread, the area may need regular weeding to prevent competition.
  • Spread May Need Controlling: In ideal conditions, it can spread beyond intended areas if not pruned back occasionally.
  • Initial Cost: More expensive than traditional grass seed when used as a lawn alternative, especially when using starter plants or plugs.

Red Creeping Thyme, Creeping Thyme, Thymus Coccineus, Wild Thyme, Red Thyme, Groundcover, seaside plant, aromatic perennial, fragrant perennial


How to Grow Red Creeping Thyme

Planting

  • Location: Red Creeping Thyme thrives in full sun and well-drained areas such as rock gardens, paths, slopes, or gravel beds. Choose a site with at least 6 hours of sunlight daily.
  • Soil: Prefers sandy or rocky soils with a neutral to alkaline pH (6.0–8.0). Avoid rich, heavy, or water-retentive soil that may cause root rot.
  • Spacing: Space plants about 12 inches (30 cm) apart to allow for spreading and airflow.

Watering

  • Frequency: Water regularly during establishment. Once mature, water deeply but infrequently, allowing the soil to dry out between waterings.
  • Young Plants: Keep the soil lightly moist but not soggy during the first few months after planting.

Fertilizing

  • Minimal Fertilizer Needs: Red Creeping Thyme typically thrives without additional feeding. It performs well in poor, lean soils.
  • Seasonal Fertilization: If necessary, apply a light dose of balanced organic fertilizer in early spring to support new growth.

Pruning

  • Timing: Lightly prune after flowering in summer to maintain shape and encourage dense, compact growth.
  • Spring Maintenance: Trim in early spring to remove any winter damage and stimulate healthy new shoots.

Overwintering

  • Mulching: In colder climates, apply a thin layer of mulch after the first frost to protect the roots from temperature swings and moisture loss.
  • Containers: For potted plants, move containers to a sheltered location during freezing weather or protect them with fleece or straw.

How to Propagate Red Creeping Thyme

By Division

Divide mature plants in late spring or early summer. Carefully separate clumps, making sure each section has healthy roots, and replant promptly.

By Stem Cuttings

In spring or summer, take 4–6 inch cuttings from non-flowering stems. Dip in rooting hormone if desired, and plant in moist, well-drained potting mix. Keep in a bright, warm spot until roots form and new growth appears.

By Seed

Start seeds indoors 8 to 10 weeks before the last frost or sow directly outdoors when temperatures stay above 60°F. Do not cover the seeds with soil, as they need light to germinate. Keep the soil moist until seedlings emerge.


Common Pests and Diseases of Creeping Thyme

Red Creeping Thyme is generally a hardy and resilient plant with few serious pest or disease issues. However, certain conditions can make it vulnerable to problems, particularly in poorly drained or overly humid environments.

Pests

  • Aphids: These small insects may appear on new growth and flower stems. They can be controlled with a strong spray of water or insecticidal soap if infestations persist.
  • Spider mites: In hot, dry conditions, spider mites may appear, leaving tiny webs and causing leaf discoloration. Improve humidity and use neem oil or insecticidal soap as needed.
  • Thrips: These slender insects can damage flowers and foliage. Natural predators or organic sprays can help manage them.

Diseases

  • Root Rot: Caused by waterlogged soil or poor drainage. Ensure the planting site has excellent drainage, and avoid overwatering.
  • Powdery mildew: May occur in humid or shaded conditions, appearing as a white powdery coating on leaves. Improve airflow and avoid overhead watering.
  • Botrytis Rot (Gray Mold): This fungal disease causes soft, gray mold on leaves and stems, especially in cool, damp weather. Remove affected parts and space plants well to reduce humidity.

Prevention Tips

  • Plant in full sun with well-drained soil to reduce disease risk.
  • Space plants properly to ensure good air circulation.
  • Avoid overhead watering and water early in the day to allow foliage to dry quickly.
  • Inspect plants regularly to catch problems early and take action if needed.

Frequently Asked Questions about Red Creeping Thyme

Is Red Creeping Thyme edible?

Yes, Red Creeping Thyme has fragrant, edible leaves that can be used fresh or dried in the kitchen. It adds flavor to soups, marinades, roasted vegetables, and meat dishes. The leaves also make a beautiful, aromatic garnish.

Does Red Creeping Thyme repel mosquitoes?

Yes, the plant’s essential oils, particularly thymol and carvacrol, are known for their insect-repellent properties. Crushing the leaves helps release these oils and can help deter mosquitoes in the garden.

How fast does Red Creeping Thyme spread?

Red Creeping Thyme spreads steadily, forming a dense mat within one to two growing seasons under favorable conditions. Planting young plants 8 to 12 inches apart will encourage full ground coverage more quickly.

What are common pests and diseases affecting Red Creeping Thyme?

While it is naturally pest-resistant, Red Creeping Thyme may occasionally experience minor issues. Pests include aphids and spider mites, while diseases are typically limited to root rot caused by excess moisture or poor soil drainage.

Can Red Creeping Thyme be used as a lawn substitute?

Yes, it is an excellent alternative to grass in areas with light foot traffic. It forms a dense, weed-suppressing carpet, requires minimal water, and brings seasonal color with its flowers.

How do you care for Red Creeping Thyme?

Once established, Red Creeping Thyme needs little attention. Water only during prolonged dry spells, trim after flowering to tidy the plant and encourage fresh growth, and apply mulch to retain soil moisture and suppress weeds.

Requirements

Hardiness 5 - 9
Heat Zones 1 - 9
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, A2, A3
Plant Type Shrubs
Plant Family Lamiaceae
Genus Thymus
Common names Thyme, Creeping Thyme
Exposure Full Sun
Season of Interest Summer (Early, Mid, Late)
Height 2" - 4" (5cm - 10cm)
Spread 8" - 1' (20cm - 30cm)
Spacing 12" (30cm)
Maintenance Low
Water Needs Low
Soil Type Chalk, Loam, Sand
Soil pH Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Fragrant, Plant of Merit, Showy, Evergreen
Tolerance Drought, Deer, Rabbit
Attracts Bees, Butterflies
Garden Uses Banks And Slopes, Beds And Borders, Edging, Ground Covers, Patio And Containers
Garden Styles City and Courtyard, Mediterranean Garden, Informal and Cottage, Coastal Garden, Gravel and Rock Garden
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Alternative Plants to Consider

Thymus serpyllum ‘Magic Carpet’ (Creeping Thyme)
Thymus pulegioides ‘Aureus’ (Golden Large Thyme)
Thymus citriodorus ‘Doone Valley’ (Lemon Thyme)
Thymus ‘Silver Queen’ (Lemon Thyme)
Thymus vulgaris (Common Thyme)
Thymus ‘Silver Posie’ (Common Thyme)

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While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.
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Requirements

Hardiness 5 - 9
Heat Zones 1 - 9
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, A2, A3
Plant Type Shrubs
Plant Family Lamiaceae
Genus Thymus
Common names Thyme, Creeping Thyme
Exposure Full Sun
Season of Interest Summer (Early, Mid, Late)
Height 2" - 4" (5cm - 10cm)
Spread 8" - 1' (20cm - 30cm)
Spacing 12" (30cm)
Maintenance Low
Water Needs Low
Soil Type Chalk, Loam, Sand
Soil pH Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Fragrant, Plant of Merit, Showy, Evergreen
Tolerance Drought, Deer, Rabbit
Attracts Bees, Butterflies
Garden Uses Banks And Slopes, Beds And Borders, Edging, Ground Covers, Patio And Containers
Garden Styles City and Courtyard, Mediterranean Garden, Informal and Cottage, Coastal Garden, Gravel and Rock Garden
How Many Plants
Do I Need?
Explore Great Plant Combination Ideas
Thymus (Thyme)
Guides with
Thymus (Thyme)
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