Source: Wikimedia Commons
Uncarina Roeoesliana
IntermediateUncarina roeoesliana
A caudex plant from Madagascar with large yellow flowers and characteristic sticky fruits.
About
Uncarina roeoesliana grows in dry forests of southern Madagascar and belongs to the Pedaliaceae (sesame) family. The trunk becomes substantially swollen with age, and the plant produces large, showy yellow flowers—among the most impressive in the genus. Together with U. grandidieri, it represents the premier flowering Uncarina in cultivation. Fruits bear characteristic hooked spines. Growth is relatively vigorous and large leaves appear during the growing season. Full sun, well-draining soil with good aeration, and generous watering from spring through autumn suit it well; near-complete drought after winter leaf drop is appropriate. The combination of large yellow flowers and swelling trunk makes it a beautiful ambassador for sesame-family caudex plants.
Lifespan of the Uncarina Roeoesliana
The Uncarina Roeoesliana lives 10-20 years.
Size of the Uncarina Roeoesliana
The Uncarina Roeoesliana grows to 30-80cm.
Temperature & humidity for the Uncarina Roeoesliana
Minimum temperature 10°C.
Basic Info
Origin
Southern Madagascar
Lifespan
10-20 years
Size
30-80cm
Temperature
10〜35℃
Watering & Fertilizer
Light fertilizer
Growing Tips
Light & Placement
It prefers full sun. Placed in ample light during growth, the large leaves fill out and the trunk thickens well.
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 overwinter indoors where 10°C or above can be kept. Keep it dry and warm while dormant.
Soil & Repotting
Use an airy mix that prioritizes drainage. Growth is vigorous, so move up one pot size when rootbound.
Fertilizer
A small amount of slow-release fertilizer during the growing season is enough. Do not feed while dormant.
Pests & Cautions
The fruits bear hooked spines, so take care that they do not catch on clothing or hands when handling a fruiting plant.
Uncarina Roeoesliana FAQ
QWhat is the growing difficulty level for Uncarina Roeoesliana?
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 Roeoesliana?
The average lifespan of Uncarina Roeoesliana is 10-20 years. With proper cultivation environment and nutrient management, you can keep it healthy for a long time.
QHow large does Uncarina Roeoesliana get?
The mature size of Uncarina Roeoesliana is 30-80cm. This may vary slightly depending on cultivation environment and individual differences.
QHow should I water and fertilize Uncarina Roeoesliana?
Uncarina Roeoesliana: watering & fertilizer — Light fertilizer. Aim for appropriate frequency and amount.
QWhat is the typical price for Uncarina Roeoesliana?
The price of Uncarina Roeoesliana varies significantly by variety, characteristics, size, and lineage. Please check GrowerDirect's price guide for the latest market information.
Last updated: June 24, 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
Regulations & Conservation Status
Not listed in either CITES Appendix I or II. Also not subject to Japan's designated invasive species or specified animals regulations (being a plant).
Sources: CITES Appendix I species list / CITES Appendix II species list / Ministry of the Environment List of Specified Invasive Alien Species
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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