Source: Wikimedia Commons
Fockea Edulis
BeginnerFockea edulis
Known as Martian Plant in Japan, with a potato-like caudex producing climbing vines.
About
Fockea edulis is native to dry regions of South Africa and Namibia, belonging to the Apocynaceae family (formerly Asclepiadaceae). In Japan it is affectionately known as the Martian Plant (Kasei-jin), a nickname inspired by the bizarre, knobby, irregular caudex from which slender twining stems emerge. The caudex swells into large, irregular forms with age. During the growing season, vines extend with small elliptical leaves. Flowers are small but fragrant. The species name edulis (edible) refers to traditional food use, but cultivated specimens should not be consumed. Growth is relatively reliable and the plant is considered one of the more forgiving caudex species, suitable for beginners. Bright light to full sun and well-draining soil suit it well. Generous watering from spring through autumn gives way to near-drought in winter. Its quirky appearance and easy care make it a popular gateway species.
Lifespan of the Fockea Edulis
The Fockea Edulis lives 30+ years.
Size of the Fockea Edulis
The Fockea Edulis grows to Caudex 10-30cm.
Temperature & humidity for the Fockea Edulis
It tolerates brief exposure to around 5°C but should be protected from frost.
Basic Info
Origin
South Africa and Namibia
Lifespan
30+ years
Size
Caudex 10-30cm
Temperature
5〜35℃
Growing Tips
Light & Placement
It adapts from full sun to bright indirect light. Keep the potato-like caudex exposed above the soil and place it where the vines get good light.
Watering
From spring to autumn, water thoroughly once the soil dries. In winter, withhold water or give only a trickle and let it rest.
Temperature & Overwintering
It has some cold tolerance, down to about 5°C. Still, keep it from frost by bringing it into a bright room for winter.
Soil & Repotting
Use a well-draining mix. It grows steadily and the caudex enlarges, so repot in spring once the pot gets tight.
Pruning & Shaping
The vines grow long in the growing season, so train them on a stake or cut back overlong growth. It is tough and rarely suffers from pruning.
Fockea Edulis FAQ
QWhat is the growing difficulty level for Fockea Edulis?
Beginner. A variety suitable for beginners. No special equipment or experience is required—you can grow it without problems by setting up a basic cultivation environment.
QWhat is the lifespan of Fockea Edulis?
The average lifespan of Fockea Edulis is 30+ years. With proper cultivation environment and nutrient management, you can keep it healthy for a long time.
QHow large does Fockea Edulis get?
The mature size of Fockea Edulis is Caudex 10-30cm. This may vary slightly depending on cultivation environment and individual differences.
QWhat is the typical price for Fockea Edulis?
The price of Fockea Edulis varies significantly by variety, characteristics, size, and lineage. Please check GrowerDirect's price guide for the latest market information.
Last updated: September 17, 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: Fockea edulis (Thunb.) K.Schum.
Synonyms: Fockea cylindrica R.A.Dyer, Pergularia edulis Thunb., Fockea glabra Decne., Chymocormus edulis (Thunb.) Harv. ex C.Presl, Echites edulis (Thunb.) Thunb., Brachystelma macrorrhizum E.Mey.
Authority databases: GBIF · POWO
Nomenclature follows global taxonomic authority databases.
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
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