Plectranthus amboinicus MEXICAN MINT (plant)

Mexican Mint, also known as Cuban Oregano belongs to the Lamiaceae family.
Known as Plectranthus amboinicus in Latin, it is a fast-growing, non-hardy succulent plant. Native to Africa, it is now found throughout the West Indies and other tropical regions.
It typically reaches 30 to 40 cm in height at maturity.

Flowering usually occurs in summer, between June and August. Small mauve flowers appear along the stems.

The leaves are oval, bluish-green, and measure about 2 to 4 cm in length. They are thick, fleshy, and slightly fuzzy to the touch.
The foliage releases a very intense and aromatic fragrance.

Mexican Mint seeds are tiny, measuring only a few millimeters, and are dark brown. They appear in autumn shortly after flowering.

How do I plant my Mexican Mint ?

• Plant Cuban Oregano in a 1 or 2-liter pot using good horticultural soil mixed with 1/3 sand.
• Ensure the bottom of the pot drains well, then water gently at the base.
• Place in a very bright spot or in the ground in mild climates.

What type of soil should I use for my plant?

Jamaican Thyme must grow in a substrate rich in organic matter that is, above all, very well-drained.

Where should I place it at home?

Due to its exotic origins, Mexican Mint grows best in full sun.
It can, however, tolerate shade for a few hours a day.

At what temperature will my Cuban oregano grow best? Is it hardy?

The plant grows very rapidly when temperatures exceed 25°C.
Below this, growth slows down and stops completely when the temperature drops below 10°C. It is frost-sensitive; remember to bring it indoors during the winter period.

Does it require frequent watering?

It does not need frequent watering; one watering per week is generally sufficient.

How can it be easily propagated? Can it be grown from cuttings?

The most effective and easiest method for reproduction is through stem cuttings using shoots about 10 cm long.

What pests and diseases affect it?

This species is quite resistant and rarely suffers from pests, though red spider mites may occasionally appear.
Beware of over-watering, which can cause root rot and lead to fungal attacks.

Why grow Cuban Oregano at home?

A Powerful Culinary Signature

Cuban Oregano, or Mexican Mint, stands out in the kitchen for its bold character.
Its fleshy leaves offer peppery and minty notes reminiscent of oregano, which retain their full aromatic strength even during long cooking times.
It is the ideal herb to enhance fish marinades, rich stews, or traditional soups.
A must-have for Asian and Caribbean cuisines that value deep, enduring flavour.

A Natural Ally for Home and Garden

Robust and drought-tolerant, this Cuban Oregano is an ornamental plant with graphic foliage that thrives in pots.
Beyond its aesthetic appeal, it acts as an effective natural repellent to keep mosquitoes away from your terraces and windows.
It is an eco-friendly and stylish solution to combine utility with comfort at home.

This article was written by Julien on 09/19/2026.