Cyphostemma Juttae
The Cyphostemma Juttae — also known as the "Namibian Grape" — is an exceptional succulent plant prized for its thick trunk and prehistoric appearance. Native to southern Africa, this caudiciform plant (with a swollen trunk base) belongs to the Vitaceae family, the same family as grapevines. It adds an exotic, sculptural touch to any dry garden or rare plant collection.
This plant develops a thick, sometimes massive trunk, covered with bark that flakes with age. Its deciduous leaves, light green with bluish tones, are large, fleshy, and palmate. In summer, it may produce small, inconspicuous yellow flowers, followed by clusters of very decorative red fruits (but toxic). Growth is slow, but over the years each specimen becomes a true living sculpture.
The Cyphostemma juttae is native to semi-desert regions of Namibia and South Africa, where it grows on rocky soils, often on arid, well-exposed slopes.
In nature, it benefits from intense daytime heat and cooler nights. This thermal contrast stimulates its metabolism and strengthens its caudex. It is perfectly adapted to dry climates with a clearly defined rainy season.
In nature, it benefits from intense daytime heat and cooler nights. This thermal contrast stimulates its metabolism and strengthens its caudex. It is perfectly adapted to dry climates with a clearly defined rainy season.
Light is essential for proper development.
☀️ Outdoors: Full sun or bright partial shade in very hot regions. It tolerates intense direct sunlight but appreciates some shade during the hottest summer hours.
🏠 Indoor cultivation: Place it in front of a south- or west-facing window. It thrives in a veranda or greenhouse.
☀️ Outdoors: Full sun or bright partial shade in very hot regions. It tolerates intense direct sunlight but appreciates some shade during the hottest summer hours.
🏠 Indoor cultivation: Place it in front of a south- or west-facing window. It thrives in a veranda or greenhouse.
Like all caudex plants, the Cyphostemma Juttae stores water in its trunk, allowing it to survive long periods of drought.
💦 Spring / summer: Water about every 3 weeks, only when the substrate is completely dry. Gradually resume watering after winter dormancy.
❄️ Autumn / winter: Stop watering during leaf drop. The plant enters full dormancy.
⚠️ Important: Too much water is fatal. Excess moisture causes caudex rot. Drier is always better than too wet!
💦 Spring / summer: Water about every 3 weeks, only when the substrate is completely dry. Gradually resume watering after winter dormancy.
❄️ Autumn / winter: Stop watering during leaf drop. The plant enters full dormancy.
⚠️ Important: Too much water is fatal. Excess moisture causes caudex rot. Drier is always better than too wet!
The Cyphostemma Juttae prefers warm temperatures.
🌡️ Ideal: 20 to 35 °C during the growing season.
❄️ Minimum: Can tolerate 5 to 7 °C if kept completely dry, but does not tolerate frost.
🛑 Tip: Bring it indoors as soon as temperatures drop below 10 °C.
🌡️ Ideal: 20 to 35 °C during the growing season.
❄️ Minimum: Can tolerate 5 to 7 °C if kept completely dry, but does not tolerate frost.
🛑 Tip: Bring it indoors as soon as temperatures drop below 10 °C.
This plant requires a perfectly draining soil.
🪨 Ideal mix: 40% cactus potting soil, 30% perlite, and 30% pozzolana.
🪴 Tip: Slightly elevate the pot to further improve water drainage.
🪨 Ideal mix: 40% cactus potting soil, 30% perlite, and 30% pozzolana.
🪴 Tip: Slightly elevate the pot to further improve water drainage.
The flowers are discreet, but the fruits are eye-catching.
📅 Period: Late summer to early autumn on mature specimens.
🌺 Flowers: Small, yellow-green.
🍇 Fruits: Round red berries, very decorative but toxic. Do not consume.
💡 Tip: Good light and a dry winter period encourage abundant flowering.
📅 Period: Late summer to early autumn on mature specimens.
🌺 Flowers: Small, yellow-green.
🍇 Fruits: Round red berries, very decorative but toxic. Do not consume.
💡 Tip: Good light and a dry winter period encourage abundant flowering.
FAQ - Cyphostemma Juttae
What is the ideal care for Cyphostemma Juttae?
It requires full sun, spaced watering (about every 3 weeks in summer), and a perfectly well-draining substrate. A mineral-rich mix ensures healthy development.
How hardy is Cyphostemma Juttae?
It is not frost-hardy. It can tolerate temperatures around 5°C if kept dry, but should be brought indoors when temperatures approach 10°C.
Can Cyphostemma Juttae be grown indoors?
Yes, provided it is placed in a very bright location such as a conservatory or behind a south-facing window.
Why is my Cyphostemma Juttae losing its leaves?
This is normal in autumn as it enters dormancy. Leaf drop is a natural mechanism. Stop watering during this period.
What type of pot should be chosen for Cyphostemma Juttae?
A terracotta pot with drainage holes is ideal. It ensures proper water evacuation, essential to prevent caudex rot.
What fertilizer should be used for Cyphostemma Juttae?
In spring, apply a diluted succulent fertilizer every 30 days to support growth without excess.
My Cyphostemma Juttae has received too much water, what should I do?
If the caudex becomes soft or blackened, it likely has too much water. Remove it from the pot, let it dry for several days, then repot in dry substrate.
Can Cyphostemma Juttae flower?
Yes, in summer on well-developed specimens. The small flowers are discreet but produce attractive decorative red fruits.
What is the mature size of Cyphostemma Juttae?
In pots, it often reaches 60 to 100 cm in height. In the ground in its native habitat, it can exceed 2 meters.
Are the fruits of Cyphostemma Juttae edible?
No, the fruits are toxic. Although attractive with their red color, they should not be consumed.
What is the difference between Cyphostemma Uter and Cyphostemma Juttae?
Cyphostemma Juttae has a more elongated trunk and a more upright silhouette, while Cyphostemma Uter develops a compact, globular caudex with lower branching.
