
Source: Wikimedia Commons
Adenia keramanthus
IntermediateAdenia keramanthus
An exceptionally hairy Adenia from Kenya and Tanzania, with trunk and leaves covered in fine grey to rusty-brown hairs. It bears downward-facing, cream, pot-shaped flowers and bright red fruits the size of an egg.
About
Adenia keramanthus is a caudiciform in the passion-flower family from south-eastern Kenya and north-eastern Tanzania (around Kilimanjaro and elsewhere) at 0–1,000 m. It grows on dry rocky slopes, in scattered tree grassland, open bushland and dry forest margins, and is reported to be poisonous, so less browsed, and fire-resistant. The knotty caudex, covered in grey bark and fine hairs, reaches about 10 cm thick. From it rise a few succulent stems that grow 50–100 cm tall and branch freely in the upper third. Its covering of fine grey or rusty-brown hairs on trunk and leaves is exceptional in the genus, and rather than climbing it forms a few-stemmed shrub without tendrils. The pale green leaves, felted grey on both sides, are ovate to round and 1.5–15 cm long. The cream, downward-facing flowers are urn-shaped, and the name comes from the Greek for "pot" and "flower". Flowers often appear before the leaves are fully open, and plants can bloom when only 15–20 cm tall. The fruits, about the size of an egg, ripen bright red to crimson. The IUCN Red List category is Least Concern. In Japan imported and seed-grown plants are sold online and through auctions.
Size of the Adenia keramanthus
The Adenia keramanthus grows to 50–100 cm tall; caudex about 10 cm thick.
Basic Info
Origin
South-eastern Kenya and north-eastern Tanzania
Lifespan
Long-lived (little published data)
Size
50–100 cm tall; caudex about 10 cm thick
Temperature
10〜35℃
Watering & Fertilizer
Moderate slow-release feeding in the growing season
Growing Tips
Light & Placement
Grow it in full sun to light shade, avoiding the harshest midsummer sun; indoors give it bright light.
Watering
It photosynthesizes through both leaves and stems, so water evenly in the growing season, though it rots if kept too wet.
Dormancy Care
When the branches die back in winter, stop watering and keep it dry; too much water while leafless causes rot.
Temperature & Overwintering
Keep it above 10°C in winter, ideally around 15°C; it is very prone to rot in cool, wet conditions.
Soil & Repotting
Use a very porous mix with plenty of pumice and perlite and repot every two years. Raising the base a little over several years lets the caudex emerge and swell.
Propagation
Propagate from seed or cuttings; cuttings root easily, but plants grown for their caudex are raised from seed.
Pests & Cautions
Adenia are reported to be highly toxic in all parts: wear gloves when pruning or repotting and keep plants away from children and pets.
Adenia keramanthus FAQ
QWhat is the growing difficulty level for Adenia keramanthus?
Intermediate. A variety suitable for intermediate growers. Requires some cultivation experience and knowledge of environment management. Pay careful attention to temperature and humidity control.
QHow large does Adenia keramanthus get?
The mature size of Adenia keramanthus is 50–100 cm tall; caudex about 10 cm thick. This may vary slightly depending on cultivation environment and individual differences.
QHow should I water and fertilize Adenia keramanthus?
Adenia keramanthus: watering & fertilizer — Moderate slow-release feeding in the growing season. Aim for appropriate frequency and amount.
QWhat is the typical price for Adenia keramanthus?
The price of Adenia keramanthus varies significantly by variety, characteristics, size, and lineage. Please check GrowerDirect's price guide for the latest market information.
Last updated: September 23, 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 CITES (checked on Species+). No special procedure is needed for transfers within Japan.
Sources: Species+ (CITES): Adenia keramanthus / IUCN Red List category via GBIF: Adenia keramanthus
Regulations may change. Always verify the latest information with the relevant authorities.
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.
Complete Guide to Choosing Caudex Plants as Gifts | Recommended Varieties by Occasion and How to Include Care Notes
A guide to choosing caudex plants as gifts organized by occasion. We introduce how to select varieties based on the recipient's cultivation experience and how to include care notes for long-term enjoyment.
Diagnosing and Treating Poor Root Development in Caudex Plants | Causes and Solutions for Roots That Won't Emerge or Won't Grow
A detailed guide to root emergence problems in caudex plants. From diagnosis methods to solutions, practical techniques for promoting healthy root development are introduced.
Complete Guide to Growing Jatropha podagrica (Buddha's Navel) | Cultivation Management to Enjoy Its Distinctive Caudex and Coral-Red Flowers
Characteristics and cultivation methods of the caudex plant Jatropha podagrica. Detailed explanation of watering management during dormancy, soil, and propagation methods.
🩺 Common diseases
Can't find the plant you're looking for?
Post your wishes for free and growers with matching plants will contact you with introductions.





