Dypsis Decaryi | Triangle Palm from Madagascar | Collector’s Palm

Dypsis decaryi, commonly known as the Triangle Palm, is one of Madagascar’s most distinctive palms. Its name comes from the remarkable triangular arrangement of the leaf bases around the trunk, giving the mature plant an almost architectural appearance.

Unlike many palms with a conventionally round crown, Dypsis decaryi develops its leaves in three distinct vertical rows. Together with the sturdy trunk and strongly structured leaf bases, this gives the plant a particularly sculptural character.

It is a palm that looks equally at home in a tropical garden, a sunny conservatory or – while young – as an unusual container plant.

Botanical background

Dypsis decaryi is endemic to Madagascar, where it occurs naturally in the southern part of the island.

The species is adapted to a warm climate with pronounced seasonal dryness. This explains an important point in cultivation: although it is a tropical-looking palm, it does not want to sit permanently in wet soil.

The distinctive triangular trunk arrangement is already visible in younger plants and becomes increasingly pronounced as the palm develops.

Why this palm is special

• Distinctive three-sided / triangular arrangement of the leaf bases
• Endemic to Madagascar
• Strongly architectural growth habit
• Elegant, pinnate leaves with a silvery-green appearance
• Suitable for sunny terraces and balconies during the warm season
• Can become an impressive specimen with age
• Particularly interesting for collectors of Madagascan and unusual palms

Plant characteristics

Botanical name: Dypsis decaryi
Common name: Triangle Palm / Three-sided Palm
Family: Arecaceae
Origin: Madagascar
Growth habit: Solitary palm with a distinctive triangular crownshaft/trunk arrangement
Leaves: Long, pinnate, grey-green to silvery-green
Light: Very bright to full sun
Summer: Preferably outdoors in a sunny, warm position
Winter: Bright and frost-free
Hardiness: Not reliably hardy in Central Europe
Watering: Moderate, with good drying between waterings
Substrate: Well drained and permeable
Type: Collector’s palm / container plant

The right location

Give Dypsis decaryi as much light as possible.

A sunny position is ideal. During the warmer months, the palm can be placed outdoors on a sunny terrace or balcony.

If it has been overwintered indoors, acclimatise it gradually to strong direct sunlight. This prevents the leaves from being scorched after moving from a relatively low-light indoor environment directly into intense summer sun.

Watering

During active growth, water thoroughly and then allow the upper part of the substrate to dry before watering again.

The important point is good drainage rather than keeping the soil constantly wet.

During cooler winter conditions, reduce watering considerably. The combination of low temperatures and permanently wet roots should be avoided.

Winter

Dypsis decaryi is not a reliably hardy palm in Switzerland.

It should be protected from frost and overwintered in a bright, frost-free location.

A cooler winter period is possible, but watering should then be reduced accordingly.

Substrate

A permeable, well-drained substrate is important.

The roots should have access to both moisture and air. Heavy soil that remains wet for prolonged periods is unsuitable and can lead to root problems.

Cultivated at TOMs FLOWer CLUB

At TOMs FLOWer CLUB, I prefer palms that are allowed to develop at their natural pace rather than being pushed with excessive fertilisation.

Dypsis decaryi is particularly rewarding when allowed to develop its characteristic structure gradually.

The plant is cultivated in a permeable, self-mixed substrate, with attention to drainage and healthy root development.

As always:

100% organic quality before quantity.

Collector insight

What I find particularly appealing about Dypsis decaryi is that its identity is already visible when the plant is still relatively young.

You don't need to wait for a huge palm to appreciate what makes it different. The unusual arrangement of the leaves creates a geometric structure that separates it immediately from the many more conventional palms found in cultivation.

And with age, that architecture becomes increasingly pronounced.

What You Receive

You will receive the Dypsis decaryi plant of the displayed size, established and cultivated in a well-drained substrate.

As with any living plant, the exact shape and development will continue to change as it grows. The characteristic triangular structure will become increasingly apparent with maturity.

A particularly interesting palm for anyone who appreciates Madagascan plants, unusual palms and naturally architectural growth forms.

Much joy with your new Dypsis decaryi!

TOMs FLOWer CLUB - 100% organic quality before quantity.