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Red creeping thyme

Thymus praecox 'Coccineus' · Lamiaceae Popular

Red creeping thyme (Thymus praecox 'Coccineus') in flower
Photo: Agnieszka Kwiecień, Nova, via Wikimedia Commons (CC BY-SA 4.0)

A flat, dark green mat that turns bronze in winter and is hidden under magenta-red flowers for three weeks in early summer.

Size
2 in tall, 18 in wide
Zones
4 to 9
Light
Full sun
Flowers
Early June to mid July
Pets
No toxicity recorded
Job in a bed
Carpet

A bed built around red creeping thyme

The planner designed this bed around red creeping thyme when this page was made: a 12 × 6 ft (3.7 × 1.8 m) English border in zone 6, full sun. It chose the other plants from the 715 that suit those conditions and its dry soil, and says below why red creeping thyme stands where it does.

A 12 × 6 ft (3.7 × 1.8 m) bed at eye level in late June: Red creeping thyme, Alpine aster, Little bluestem 'The Blues', Brown-eyed Susan, Silver sage, Butterfly weed, Ornamental onion 'Purple Sensation', Tulip 'Lilac Wonder'.
A 12 × 6 ft (3.7 × 1.8 m) English border in zone 6, full sun, seen from the path in late June.
4. Brown-eyed Susan44. Brown-eyed Susan44. Brown-eyed Susan43. Little bluestem 'The Blues'33. Little bluestem 'The Blues'33. Little bluestem 'The Blues'35. Silver sage51. Red creeping thyme11. Red creeping thyme11. Red creeping thyme12. Alpine aster22. Alpine aster22. Alpine aster22. Alpine aster22. Alpine aster21. Red creeping thyme11. Red creeping thyme11. Red creeping thyme13. Little bluestem 'The Blues'33. Little bluestem 'The Blues'33. Little bluestem 'The Blues'33. Little bluestem 'The Blues'33. Little bluestem 'The Blues'37. Ornamental onion 'Purple Sensation'77. Ornamental onion 'Purple Sensation'76. Butterfly weed66. Butterfly weed66. Butterfly weed61. Red creeping thyme11. Red creeping thyme11. Red creeping thyme11. Red creeping thyme11. Red creeping thyme17. Ornamental onion 'Purple Sensation'77. Ornamental onion 'Purple Sensation'78. Tulip 'Lilac Wonder'8. Tulip 'Lilac Wonder'8. Tulip 'Lilac Wonder'8. Tulip 'Lilac Wonder'8. Tulip 'Lilac Wonder'8. Tulip 'Lilac Wonder'8. Tulip 'Lilac Wonder'8. Tulip 'Lilac Wonder'8. Tulip 'Lilac Wonder'8. Tulip 'Lilac Wonder'8. Tulip 'Lilac Wonder'8. Tulip 'Lilac Wonder'
From above, to scale. Each circle is one plant, as wide as the room it needs.

The plants

  1. 2 Alpine aster × 5, purple
  2. 3 Little bluestem 'The Blues' × 8, tan
  3. 4 Brown-eyed Susan × 3, yellow
  4. 5 Silver sage × 1, silver leaves
  5. 6 Butterfly weed × 3, orange
  6. 7 Ornamental onion 'Purple Sensation' × 4, purple
  7. 8 Tulip 'Lilac Wonder' × 12, pink

Why this plant

  • The only dense clusters. The others are daisies, spires, flat plates and others. Shape reads at a distance, where colours blur.
  • The only red.

Why here

  • On the front edge. At 2 in it frames the bed without hiding it, and it is in leaf all season. It finishes 47% of the edge.
  • 11 plants in 3 runs (5, 3 and 3). Runs of different lengths make the edge a frame, not a ruled line.
  • Fine leaf against bold. Silver sage is beside it: the strongest contrast of leaf there is.

Why now

  • In flower for six weeks. From early June to mid July.
  • Part of the bed's peak. With alpine aster and ornamental onion 'Purple Sensation' in early June: 3 kinds at once. No week has more.
  • The only leaves in winter. From November to March it is what there is to look at.

Planned as an English border: 4 of the 6 groups (67%) are drifts, longer along the bed than they are deep. Neither end outweighs the other: the visual weight is split 48 to 52, left to right. Silver sage, red creeping thyme and alpine aster finish the front edge.

The planner's own design check: 12 Excellent, 5 Good. It flags one thing to watch: Nothing on this plan is highly poisonous or an aggressive spreader.

Open this bed in the planner Change its size, the sun or the style, move plants about, or swap one for another.

Where red creeping thyme goes in a border

At 2 in it belongs at the front of a bed. In the planner's ten height classes it is ground-hugging (up to 6 in).

Its job: carpet. A groundcover planted in threes and fives to cover the soil: along the front, and just behind it.

The brightest carpet thyme, and the one most often used between stepping stones and as a lawn substitute on dry banks. It takes light foot traffic.

  • Between stepping stones
  • A flowering lawn substitute
  • Dry banks and wall tops

What to plant with red creeping thyme

Plants recorded as good partners for it, and what each pairing does:

  • Woolly thyme: its grey-green leaves are a setting for the flowers, before and after; happy in the same dry soil.
  • Hens and chicks: its green leaves are a setting for the flowers, before and after; tall enough (4 in) to stand behind it; happy in the same dry soil.
  • Blue fescue: its blue-green leaves are a setting for the flowers, before and after; tall enough (10 in) to stand behind it; happy in the same dry soil.

Questions about red creeping thyme

Does red creeping thyme need sun or shade?

Red creeping thyme grows in full sun (6 or more hours of direct sun a day).

It wants dry, sharply drained soil, on the lean side, with no feeding, and little watering once settled. Once settled in, it stands drought.

What zones does red creeping thyme grow in?

USDA zones 4 to 9. It is hardy to zone 4, which means it survives winter nights down to about −20 °F (−29 °C).

Gardening in Canada? Use the USDA zone for your town: Canada's own zone map uses different numbers.

When does red creeping thyme flower in my zone?

In zone 5 it flowers early June to mid July. As a summer flower it moves about half a week for every zone: earlier where it is warmer.

Roughly when red creeping thyme is in flower
Zone 4Mid June to mid July
Zone 5Early June to mid July
Zone 6Early June to mid July
Zone 7Late May to early July
Zone 8Late May to early July
Zone 9Late May to late June

Worked out from Hopkins' bioclimatic law: spring arrives about four days later for each degree of latitude north, and one zone is roughly two degrees. A warm spring or a cold one moves any garden two weeks either way.

How far apart should red creeping thyme be planted?

12 in (30 cm) apart, from the middle of one plant to the middle of the next. That is a little closer than its full width of 18 in (45 cm), so a group knits into one patch.

It grows 2 in (5 cm) tall. Give it the full distance from anything taller, or it will lean out towards the light.

How many red creeping thyme plants do I need?

At 12 in apart, set out in staggered rows:

  • 12 to fill 10 square feet (about 1 m²)
  • 11 for a single row 10 ft (3 m) long
  • 38 to fill a 4 × 8 ft bed on its own

In a mixed border, plant it as threes and fives, along the front and just behind it.

In the bed above, the planner used 11 in three groups.

Is red creeping thyme poisonous to dogs and cats?

No toxicity is recorded for dogs, cats, horses or people, according to NC State Extension.

"Not toxic" is not "edible": a pet that eats a lot of any plant can be sick.

Is there a native plant like red creeping thyme?

Red creeping thyme comes from Greenland, Europe to Turkey. These North American natives come closest to doing its job:

  • Three-toothed cinquefoil: the same job in a bed and the same flowering time; 4 in taller, white, not red.
  • Woolly yarrow: the same job in a bed and the same flowering time; 6 in taller, yellow, not red.

Matched the way the planner's Swap button matches plants: the same job in a bed, then size, then flowering time.

Do deer eat red creeping thyme?

Mostly not. NC State lists it as resistant to deer and rabbits. No plant is proof against a hungry deer in a hard winter, but this one is low on the menu.

What flowers after red creeping thyme?

Red creeping thyme is over by mid July. These start as it finishes and carry the same spot on, so it never goes flat:

What does red creeping thyme look like in winter?

Red creeping thyme keeps its dark green leaves all winter, so it is one of the plants that hold a bed together from November to March, when the perennials have gone.

Is red creeping thyme good for bees and butterflies?

Red creeping thyme is visited by pollinators, bees and butterflies.

More Thymus

In these guides

Zone guides: Zone 4 · Zone 5 · Zone 6 · Zone 7 · Zone 8 · Zone 9

In flower in: June · July

Every fact on record

Type
Perennial (groundcover)
Size
2 in (5 cm) tall, 18 in (45 cm) wide
Plant
12 in (30 cm) apart
Height class
Ground-hugging (up to 6 in)
Place in the bed
Front
Flowers
Early June to mid July; dense clusters; red, pink
Leaves
Fine texture, evergreen; dark green
Shape
Mat-forming, spreading
Hardy in
USDA zones 4 to 9
Light
Full sun
Soil
Lean, dry and sharply drained
Water
Low
Feeding
None needed
Family
Lamiaceae
Comes from
Greenland, Europe to Turkey
Attracts
Pollinators, bees, butterflies
Stands up to
Deer, rabbits, drought, poor soil, foot traffic

Checked against NC State Extension and VASCAN (plants of Canada). Flowering times are for zone 5: later in colder zones, earlier in warmer ones. Toxicity and spread information is a general gardening guide, not veterinary or medical advice, and invasive status varies by region. If a person or pet eats a plant, contact poison control or a vet. Check your local invasive species list before planting anything with a spread warning.