Source: Wikimedia Commons
Uncarina Grandidieri
IntermediateUncarina grandidieri
A sesame-family caudex from Madagascar with yellow flowers, broad leaves and unique seeds.
About
Uncarina grandidieri grows in dry forests of western to southwestern Madagascar and belongs to the Pedaliaceae (sesame) family. The trunk becomes substantially swollen with age, and large, somewhat rough-textured leaves provide lush greenery. From spring through summer, it produces striking yellow flowers exceeding 5 cm in diameter in succession, making it one of the more ornamental caudex plants in bloom. Fruits bear hooked spines for zoochorous seed dispersal. Growth is relatively fast and vigorous even in containers. Full sun, well-draining soil, and generous watering during the growing season suit it well; after leaf drop in winter, near-complete drought is appropriate. Its combination of showy flowers, distinctive fruits, and swelling trunk makes it a popular and rewarding species.
Lifespan of the Uncarina Grandidieri
The Uncarina Grandidieri lives 20+ years.
Size of the Uncarina Grandidieri
The Uncarina Grandidieri grows to 30-80cm.
Temperature & humidity for the Uncarina Grandidieri
Sensitive to cold below 10°C.
Basic Info
Origin
Western to southwestern Madagascar
Lifespan
20+ years
Size
30-80cm
Temperature
10〜35℃
Growing Tips
Light & Placement
It prefers full sun, so keep it in a sunny outdoor spot or window during growth. Ample light improves flowering from spring to summer.
Watering
From spring to autumn water thoroughly once the soil dries. It drops its leaves and rests in winter, so withhold water then.
Temperature & Overwintering
Cold tolerance is low, so bring it indoors where 10°C or above can be maintained in winter. Keep it fully dry while dormant.
Soil & Repotting
Use an airy mix that prioritizes drainage. It grows fast and vigorously even in pots, so move up one pot size when rootbound.
Pests & Cautions
The fruits bear hooked spines that catch on clothing and animal fur. Take care around the spines when handling a fruiting plant.
Uncarina Grandidieri FAQ
QWhat is the growing difficulty level for Uncarina Grandidieri?
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 lifespan of Uncarina Grandidieri?
The average lifespan of Uncarina Grandidieri is 20+ years. With proper cultivation environment and nutrient management, you can keep it healthy for a long time.
QHow large does Uncarina Grandidieri get?
The mature size of Uncarina Grandidieri is 30-80cm. This may vary slightly depending on cultivation environment and individual differences.
QWhat is the typical price for Uncarina Grandidieri?
The price of Uncarina Grandidieri varies significantly by variety, characteristics, size, and lineage. Please check GrowerDirect's price guide for the latest market information.
Last updated: July 5, 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.
Taxonomy & Authority
Accepted name: Uncarina grandidieri (Baill.) Stapf
Synonyms: Harpagophytum grandidieri Baill., Uncarina dimidiata (Baill.) Ihlenf. & Straka, Harpagophytum dimidiatum Baill., Uncarina didieri (Baill.) Stapf, Uncaria grandidieri (Baill.) Kuntze
Authority databases: GBIF · POWO
Nomenclature follows global taxonomic authority databases.
Regulations & Conservation Status
Uncarina grandidieri is individually listed in CITES Appendix II (congeneric roeoesliana is not listed).
Sources: CITES Appendix II species list / CITES Appendices (valid from 2023)
Regulations may change. Always verify the latest information with the relevant authorities.
Related Species
Find listings for this species
Related Articles
How to Grow Uncarina | Differences Between the Madagascar Endemic Species Grandidieri and Roeoesliana
An explanation of the appeal and cultivation methods of the Madagascar endemic caudex plant Uncarina genus. We introduce the differences between Uncarina grandidieri and roeoesliana, seedling cultivation, and repotting timing.
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