Cuban oregano care guide

Coleus amboinicus

Also known as: Cuban oregano, Plectranthus amboinicus

Pets and children

Considered toxic

Essential oils in the leaves and stems are known to cause vomiting and diarrhea in dogs and cats; keep it out of reach and consult a veterinarian if it is eaten.

How often to water Cuban oregano

Spring–Summer (Mar–Sep)
Every 5 days
The fleshy leaves store water, so water thoroughly once the soil has dried through, about every 4 to 7 days as a guide, and less in the rainy season.
Autumn (Oct–Nov)
Every 7 days
The soil dries slowly as it cools; as a guide, wait two or three days after it dries.
Winter (Dec–Feb)
Every 14 days
Keep it dry in winter, giving a little water about a week after the soil dries, as a guide.

Light and placement for Cuban oregano

Likes sun and moving air: a bright window indoors, or outdoor sun in the warm months, as a guide; midsummer sun can scorch the leaves, so move it to bright part shade then.

Overwintering Cuban oregano

Overwintering guide: 5°C (41°F) or above

Tender and killed by frost: as a guide, bring it to a sunny window indoors when nights drop below 10°C and keep it above 5°C, moving it back from cold glass at night.

Fertilizing and repotting Cuban oregano

Fertilizer

It grows well on little food: from May to September, diluted liquid feed about once or twice a month or a little slow-release fertilizer as a guide; too much weakens the scent, and none in winter.

When to repot

Spring–Summer (Mar–Sep)

Common problems with Cuban oregano

  • Overwatering blackens the stem base and rots the roots.
  • Left outdoors or by a cold window in winter, the leaves turn mushy from the cold.
  • Too little light makes it leggy with small, thin leaves.

Tips for growing Cuban oregano

  • Cutting back long stems brings side shoots and a fuller plant.
  • Cuttings root readily in soil from spring to early summer.
  • Free-draining soil reduces losses from wet roots.

These are AI-generated general guidelines. They vary with the variety, the placement and the pot size. For effects on pets or children, consult a veterinarian or a doctor.

Keep your plant log going

Greenery is a free app that keeps your plant care going, with watering reminders and photo records. Available on iOS and Android.

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