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Pachypodium Horombense (Pachypodium horombense)

Source: Wikimedia Commons

Pachypodium Horombense

Intermediate

Pachypodium horombense

A Pachypodium with thick caudex producing multiple branches, yellow flowers and silver trunk.

Growing Difficulty
Intermediate
Temperature
10〜40℃
Lifespan
20-50 years
Size
20-50cm

Overview

Pachypodium horombense is native to the Horombe Plateau in southern Madagascar. It is distinguished by its beautiful silver-gray trunk and large yellow flowers, with a tendency to branch more readily than some relatives. The flowers are cup-shaped, borne about 3 to 10 per long flower stalk, and the corolla swells into five pouch-like lobes. When not in flower, it is said to be difficult to tell apart from P. rosulatum. Leaves are narrow and glossy. Growth is slow but it is considered relatively accommodating in cultivation. Full sun, extremely porous soil, generous watering during growth, and complete winter drought are standard. The silver trunk texture and showy yellow flowers at bloom make it an attractive and popular addition to collections.

Lifespan of the Pachypodium Horombense

The Pachypodium Horombense lives 20-50 years.

Size of the Pachypodium Horombense

The Pachypodium Horombense grows to 20-50cm.

Temperature & humidity for the Pachypodium Horombense

The ideal temperature for the Pachypodium Horombense is 10〜40℃.

Keep above 10°C in winter.

Basic Info

Origin

Horombe Plateau, southern Madagascar

Lifespan

20-50 years

Size

20-50cm

Temperature

10〜40℃

Growing Tips

Light & Placement

Full sun is essential. Grown in a sunny spot, the silver-gray trunk stays firm and flowering improves.

Watering

In the growing season, water thoroughly once the soil dries. It is relatively easy to grow, but stick to the rule of watering only after the soil dries.

Temperature & Overwintering

Cold tolerance is low; keep it above 10°C. Withhold water in winter and keep it in a warm, bright spot indoors.

Soil & Repotting

Use an ultra-fast-draining mix based on pumice and hyuga pumice. Repot at the start of the growing season.

Pruning & Shaping

It naturally tends to branch into several stems, so the form develops on its own. Turn the pot occasionally so growth does not lean toward the light.

CaudexPachypodiumSilver TrunkBranching

Pachypodium Horombense FAQ

QWhat is the growing difficulty level for Pachypodium Horombense?
A

Intermediate. A variety suitable for intermediate growers. Requires some cultivation experience and knowledge of environment management. Pay careful attention to temperature and humidity control.

QWhat is the ideal temperature for Pachypodium Horombense?
A

The ideal temperature for Pachypodium Horombense is 10〜40℃. Avoid sudden temperature changes and maintain a stable environment.

QWhat is the lifespan of Pachypodium Horombense?
A

The average lifespan of Pachypodium Horombense is 20-50 years. With proper cultivation environment and nutrient management, you can keep it healthy for a long time.

QHow large does Pachypodium Horombense get?
A

The mature size of Pachypodium Horombense is 20-50cm. This may vary slightly depending on cultivation environment and individual differences.

QWhat is the typical price for Pachypodium Horombense?
A

The price of Pachypodium Horombense varies significantly by variety, characteristics, size, and lineage. Please check GrowerDirect's price guide for the latest market information.

Last updated: October 2, 2026

References & Sources

Edited & verified by: GrowerDirect Editorial Team

The classifications, regulations, and growing data on this page are created and verified based on the primary information database below.

Primary sources

Taxonomy & Authority

Accepted name: Pachypodium horombense Poiss.

Synonyms: Pachypodium rosulatum var. horombense (Poiss.) G.D.Rowley

Authority databases: GBIF · POWO

Nomenclature follows global taxonomic authority databases.

Regulations & Conservation Status

CITES Appendix II

Pachypodium spp. (at genus level) listed in CITES Appendix II.

Sources: CITES Appendix II species list / CITES Appendices (valid from 2023)

Regulations may change. Always verify the latest information with the relevant authorities.

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