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SOLD - Cyphostemma Montagnacii - A

$350.00
sold out

Cyphostemma Montagnacii - A rare, caudiciform member of the grape family (Vitaceae) native to arid regions of Madagascar, prized by collectors for its swollen, sculptural base (caudex) that stores water and gives the plant a bonsai-like appearance. It produces thick, somewhat succulent stems with seasonal, lobed green leaves that may drop during dormancy, especially in dry or cool conditions. In cultivation, it prefers strong light, excellent drainage, and careful watering to prevent rot, thriving in warm temperatures with a pronounced dry rest period. Its slow growth and limited availability make it highly sought after among caudiciform and succulent enthusiasts.

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Cyphostemma Montagnacii - A rare, caudiciform member of the grape family (Vitaceae) native to arid regions of Madagascar, prized by collectors for its swollen, sculptural base (caudex) that stores water and gives the plant a bonsai-like appearance. It produces thick, somewhat succulent stems with seasonal, lobed green leaves that may drop during dormancy, especially in dry or cool conditions. In cultivation, it prefers strong light, excellent drainage, and careful watering to prevent rot, thriving in warm temperatures with a pronounced dry rest period. Its slow growth and limited availability make it highly sought after among caudiciform and succulent enthusiasts.

🌞 Light

  • Prefers bright, indirect sunlight or filtered light.

  • Avoid harsh midday sun, which can scorch new leaves.

  • Indoors: place near a south or east-facing window. Outdoors: light shade or morning sun is ideal.

💧 Watering

  • Active growth (spring–summer): Water when the top inch of soil is dry. The caudex should never sit in wet soil.

  • Dormancy (fall–winter): After the vines and leaves die back, stop watering completely. Only mist or lightly water once every 4–6 weeks to prevent the caudex from shriveling.

  • Always use a pot with excellent drainage — overwatering is the main cause of failure.

🌵 Soil

  • Needs very well-draining, gritty soil — similar to a cactus or caudiciform mix.

  • Recommended blend:

    • 60–70% pumice, perlite, or coarse sand

    • 30–40% light organic matter (cactus mix or loam)

  • Avoid moisture-retentive soil like peat or coco coir.

🌡️ Temperature

  • Ideal temperature: 75–90°F (24–32°C) during growth.

  • Do not expose to temperatures below 55°F (13°C) — it is not frost-tolerant.

  • Likes warm, slightly dry air with good ventilation.

🍃 Fertilization

  • Feed once a month during active growth with a diluted, balanced fertilizer (e.g., 1/4 strength).

  • Do not fertilize while dormant.

🪴 Container & Repotting

  • Use a shallow, porous pot (clay or terracotta) with large drainage holes.

  • Repot only when necessary — every 2–3 years, before new growth starts in spring.

  • Keep the caudex slightly above soil level to prevent rot and display its shape.

✂️ Maintenance

  • Let vines climb or trail naturally; prune dead growth at the start of dormancy.

  • Avoid disturbing the caudex — it’s slow-growing and easily damaged.

🌱 Propagation

  • Propagated from fresh seeds; germination requires warmth (80–85°F / 27–29°C) and steady moisture.

  • Caudex division is not recommended — each plant forms from a single tuber.