Source: Wikimedia Commons
Gerrardanthus Macrorhizus
BeginnerGerrardanthus macrorhizus
A cucurbit with large spherical green caudex producing vines, fast-growing and impressive.
About
Gerrardanthus macrorhizus grows in forest margins and dry woodland from Kenya and Tanzania to eastern South Africa, belonging to the Cucurbitaceae family. As its name suggests (macrorhizus = large-rooted), it develops a large, spherical to oblate caudex in a distinctive green color—indicating the presence of chlorophyll enabling photosynthesis. Vigorous twining stems with divided, cucurbit-type leaves are produced during growth. Growth rate is relatively fast. Full sun to bright partial shade with well-draining soil is appropriate. Generous watering from spring through autumn and complete winter drought are standard. Somewhat frost-sensitive. The impressive presence of the large green spherical caudex combined with vigorous growth makes it one of the most popular cucurbit caudex plants in cultivation.
Lifespan of the Gerrardanthus Macrorhizus
The Gerrardanthus Macrorhizus lives 20+ years.
Size of the Gerrardanthus Macrorhizus
The Gerrardanthus Macrorhizus grows to Caudex 15-40cm.
Basic Info
Origin
East Africa (Kenya, Tanzania, and eastern South Africa)
Lifespan
20+ years
Size
Caudex 15-40cm
Temperature
10〜35℃
Growing Tips
Light & Placement
It adapts from full sun to bright partial shade. The green caudex photosynthesizes, so keep it exposed above the soil where it receives light.
Watering
From spring to autumn, water thoroughly once the soil dries. It grows vigorously, so do not let it dry out too long; withhold water in winter.
Temperature & Overwintering
Cold tolerance is somewhat low and it is frost-sensitive. Overwinter in a bright, frost-free indoor spot with dry soil.
Soil & Repotting
Use a well-draining mix. It grows fast and the caudex enlarges, so repot at the start of the growing season once the pot gets tight.
Pruning & Shaping
The vines grow vigorously in the growing season, so train them on a stake or cut back overlong growth. It is tough and takes pruning well.
Gerrardanthus Macrorhizus FAQ
QWhat is the growing difficulty level for Gerrardanthus Macrorhizus?
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 Gerrardanthus Macrorhizus?
The average lifespan of Gerrardanthus Macrorhizus is 20+ years. With proper cultivation environment and nutrient management, you can keep it healthy for a long time.
QHow large does Gerrardanthus Macrorhizus get?
The mature size of Gerrardanthus Macrorhizus is Caudex 15-40cm. This may vary slightly depending on cultivation environment and individual differences.
QWhat is the typical price for Gerrardanthus Macrorhizus?
The price of Gerrardanthus Macrorhizus 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
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
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