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Caribbean Oregano

Coleus amboinicus, Lamiaceae

Sources last read 14 September 2026.

Not yet rated How forgiving it is has not been judged here yet.

Also called country borage, Cuban Oregano, French thyme, Indian mint, Mexican mint, soup mint and Spanish thyme.

Caribbean Oregano (Coleus amboinicus), the whole plant.
Abithavelu, CC0 · Wikimedia Commons

Toxicity is partly unassessed

  • Not assessed for cats. This plant is not on the ASPCA list. That is not a finding of safety: none of the sources read for this site gives an answer either way. Treat it as unknown.
  • Not assessed for dogs. This plant is not on the ASPCA list. That is not a finding of safety: none of the sources read for this site gives an answer either way. Treat it as unknown.
  • Not assessed for people. RHS publishes no harm statement for this plant. That is not a finding of safety: none of the sources read for this site gives an answer either way. Treat it as unknown.

What the sources say about its care

Sources file this plant under other names: Plectranthus amboinicus. Citations below point at the name its source uses.

Light
Full sun
RHS · read 13 September 2026
Water
Moist but well-drained
RHS · read 13 September 2026
Humidity

No source read publishes a humidity figure for any plant on this site. What follows is general guidance for foliage plants.

ASHRAE recommends indoor relative humidity between 30% and 60% 30–60%
Penn State Extension · read 13 September 2026
Temperature

How cold this tolerates, not what it prefers. No source read for this site publishes a preferred range for a plant indoors.

H1B — 10–15°C 10–15 °C
RHS · read 13 September 2026
Soil
Loam, Sand; pH Acid or Alkaline or Neutral
RHS · read 13 September 2026
Toxic to cats
Not on the ASPCA list. That is not a finding of safety.
ASPCA · read 13 September 2026
Toxic to dogs
Not on the ASPCA list. That is not a finding of safety.
ASPCA · read 13 September 2026
Harmful to people
No statement of harm to people is published for this plant; that absence is not evidence it is safe.
RHS · read 13 September 2026

Routine care

Watering
While growing, water generously and feed monthly with a balanced liquid fertiliser; in winter, water moderately.
RHS · read 13 September 2026
Feeding
While growing, water generously and give a balanced liquid feed each month; water moderately in winter.
RHS · read 13 September 2026
Propagation
Divide it in spring to propagate. Propagation from stem cuttings is very easy.
NC State Extension, filed as Plectranthus amboinicus · read 13 September 2026
Take cuttings year-round.
RHS · read 13 September 2026
Pruning
Pruning is not needed.
RHS · read 13 September 2026
Pests and diseases
Can be troubled by mealybugs.
NC State Extension, filed as Plectranthus amboinicus · read 13 September 2026
Usually free of pests and diseases.
RHS · read 13 September 2026

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About the plant

Native range
Kenya to S. Africa, Arabian Pen., India
World Checklist of Vascular Plants, June 2026 release, CC BY.
Kew WCVP · read 13 September 2026
Africa, Arabian Peninsula, India
NC State Extension, filed as Plectranthus amboinicus · read 13 September 2026
Africa, Asia
RHS · read 13 September 2026
Climate
seasonally dry tropical
World Checklist of Vascular Plants, June 2026 release, CC BY.
Kew WCVP · read 13 September 2026
Growth form
scrambling subshrub
World Checklist of Vascular Plants, June 2026 release, CC BY.
Kew WCVP · read 13 September 2026
Ground Cover, Herbaceous Perennial; habit horizontal, mounding, spreading
NC State Extension, filed as Plectranthus amboinicus · read 13 September 2026
Bushy (evergreen)
RHS · read 13 September 2026
Size
Height 12–42 in; width 12–36 in
NC State Extension, filed as Plectranthus amboinicus · read 13 September 2026
Height 0.1-0.5 metres; spread 0.1-0.5 metres after 2–5 years
RHS · read 13 September 2026
Flowering
Flowers pink, purple/lavender, white; blooms in summer
NC State Extension, filed as Plectranthus amboinicus · read 13 September 2026
Uses

What sources record people using this plant for. A traditional or medicinal use listed here is a record of use, not advice to eat it or treat anything with it.

The leaves can be eaten fresh or dried.
NC State Extension, filed as Plectranthus amboinicus · read 13 September 2026

Other Coleus

More of the Lamiaceae family

Plants with similar care

Sources

What this does not cover

The figures above are what published sources say, not measurements of the plant in your room. They say nothing about your pot size, your water, the season, or how far from the glass the plant stands, and those decide more than any figure here does.

Humidity has no species figure because no source read for this site publishes one, and the only temperature published for this plant is a cold floor. The simulator fills those gaps with general figures for its kind of plant, marked as general and listed on how we read sources. Where a toxicity row says the plant was not assessed, that is the absence of a finding and not a finding of safety.

If something is already wrong, the diagnosis tool asks about the soil, the window and the watering, which is where the answer usually is.