Combretum quadrangulare SAKAE NAA (5 seeds)

Sakae Naa, or Combretum quadrangulare in Latin, is an Asian tree native to Vietnam, Cambodia, Laos, and Thailand. It belongs to the Combretaceae family. In tropical climates, it can reach up to 10 meters in height. It is a fast-growing tree with evergreen foliage.

Leaves are opposite and oval-shaped, with smooth or sometimes slightly wavy edges. Their texture is leathery; they are dark green on the top and lighter underneath. The flowers are small and grouped in panicle inflorescences, ranging in color from white to cream, sometimes with hints of pink or red.

Fruits are small drupes, often ovoid or slightly flattened. As they ripen, they turn brown or black and contain a single seed.

Combretum seeds are light brown and have a very unique shape, consisting of 4 wings, and usually measure about 2 centimeters.

- Properties / Uses:

An Ethnobotanical Curiosity from Southeast Asia

This rare species sparks keen interest among botany enthusiasts due to its documented traditional uses in Southeast Asia.
Native to the forests of Thailand and Myanmar, it is currently the subject of observational studies and ethnobotanical surveys aimed at cataloguing heritage plants historically used by local communities.

A Collector's Plant for Lovers of Rarities

Offered in the form of seeds or collector's specimens, this variety is ideal for collectors wishing to enrich their greenhouse with a little-known Asian species.
Its glossy green leaves and robust structure make it a fascinating subject of study for observing traditional plant preservation methods around the world.

- Germination and Sowing:

• The most favorable period to sow Sakae Naa is from late May to late July, as it requires warm temperatures day and night to guarantee optimal germination.
• Soak the seeds for 6 to 12 hours in lukewarm water to break dormancy.
• Use a tray or a large pot with acidic-pH horticultural potting soil.
• Plant the seeds "tail-up" at a depth of 2 cm.
• Firm the soil and water gently.
• Place the plantation in a greenhouse at a temperature of 35°C to 40°C.
• Germination typically begins after 2 to 3 weeks.

- Type of Earth / Substrate:

The substrate should be well-drained and rich in organic matter. This tree thrives best in light, sandy, or loamy soil with excellent drainage to avoid excess moisture.

- Exposure / Sunlight:

It requires full sun for optimal growth. High light exposure promotes flowering and foliage development. While it can tolerate partial shade, its growth will be less vigorous.

- Temperatures / Hardiness:

It prefers warm, subtropical temperatures between 20°C and 35°C. It must be protected from frost, as it is sensitive to temperatures below 10°C.

- Irrigation / Watering:

Watering should be regular during the growth period, keeping the soil slightly moist. In winter, reduce the frequency of water supply.

- Multiplication / Reproduction:

Propagation of Sakae Naa is primarily done by seed or by cuttings. Cuttings take best using semi-hardwood shoots in summer under high humidity conditions.

- Pests / Diseases:

Combretum quadrangulare can be attacked by aphids, scale insects, or spider mites.

This article was written by Julien on 07/15/2026.