Xerosicyos Danguyi
The Xerosicyos Danguyi — also known as the “Silver Dollar Plant” — is a botanical curiosity native to Madagascar. Although it is not a true cactus, this succulent is often grown alongside cacti due to its graphic appearance and similar care requirements. It is distinguished by its thick, round, silvery-green leaves that resemble hanging coins along climbing stems.
Its dense and ornamental foliage immediately catches the eye, whether grown in a pot or trained on a support. Given enough space, its climbing habit can reach several meters, making it ideal for trellises or pergolas. In pots, it maintains a compact, trailing form, perfect for hanging displays. Despite its delicate appearance, Xerosicyos Danguyi is a robust and easy-care plant, appreciated for its originality.
The Xerosicyos Danguyi is endemic to the dry, rocky regions of Madagascar. It naturally grows in arid areas where rainfall is scarce but coastal fog is frequent, making it particularly drought-tolerant.
Its name comes from the Greek “xeros” (dry) and “sicyos” (cucumber), referring to its succulent leaves and tiny fruits. It belongs to the Cucurbitaceae family, the same family as squash and cucumbers.
Its name comes from the Greek “xeros” (dry) and “sicyos” (cucumber), referring to its succulent leaves and tiny fruits. It belongs to the Cucurbitaceae family, the same family as squash and cucumbers.
This plant thrives in bright light and full sun.
🌤️ Indoors: Place it near a well-exposed window, preferably south-facing.
🌞 Outdoors: Grow it in full sun or light partial shade, sheltered from heavy rain.
☀️ Bright light encourages compact leaves and denser growth.
🌤️ Indoors: Place it near a well-exposed window, preferably south-facing.
🌞 Outdoors: Grow it in full sun or light partial shade, sheltered from heavy rain.
☀️ Bright light encourages compact leaves and denser growth.
Like most succulents, the Xerosicyos Danguyi is sensitive to excess water.
💦 Spring / Summer: Water every 2 to 3 weeks depending on temperature. Allow the substrate to dry completely between waterings.
❄️ Winter: Greatly reduce watering, or stop completely if kept cool.
⚠️ Wrinkled leaves indicate underwatering, but overwatering can quickly cause rot.
💦 Spring / Summer: Water every 2 to 3 weeks depending on temperature. Allow the substrate to dry completely between waterings.
❄️ Winter: Greatly reduce watering, or stop completely if kept cool.
⚠️ Wrinkled leaves indicate underwatering, but overwatering can quickly cause rot.
The Xerosicyos Danguyi prefers warm to moderate temperatures.
🌡️ Ideal range: 20 to 30 °C.
❄️ Minimum tolerated: Down to 5 °C if the substrate is completely dry.
🏠 Winter advice: In cold climates, overwinter indoors or in a bright, frost-free greenhouse.
🌡️ Ideal range: 20 to 30 °C.
❄️ Minimum tolerated: Down to 5 °C if the substrate is completely dry.
🏠 Winter advice: In cold climates, overwinter indoors or in a bright, frost-free greenhouse.
The substrate must be perfectly well-draining to prevent water retention.
🪴 Ideal mix: 50% cactus soil, 30% coarse sand, and 20% perlite or pumice.
A drainage layer at the bottom of the pot is strongly recommended.
🪴 Ideal mix: 50% cactus soil, 30% coarse sand, and 20% perlite or pumice.
A drainage layer at the bottom of the pot is strongly recommended.
The Xerosicyos Danguyi may flower in summer, although this remains rare in cultivation.
🌼 Flowers: Small, yellow-green, and not particularly ornamental.
💡 Tip: Mature plants grown in strong light and subjected to slight drought stress are more likely to bloom.
🌼 Flowers: Small, yellow-green, and not particularly ornamental.
💡 Tip: Mature plants grown in strong light and subjected to slight drought stress are more likely to bloom.
FAQ - Xerosicyos Danguyi
What is the ideal exposure for Xerosicyos Danguyi?
It prefers very bright exposure. Place it behind a south-facing window or in a sunny garden spot. Strong light ensures compact growth and well-formed leaves.
How often should Xerosicyos Danguyi be watered?
Water every 2 to 3 weeks in spring and summer, allowing the substrate to dry completely between waterings. In winter, reduce watering significantly to prevent rot.
What substrate should be used for Xerosicyos Danguyi?
Use a very well-draining substrate such as a mix of cactus soil, coarse sand, and mineral drainage materials to prevent excess moisture.
Is Xerosicyos Danguyi toxic?
No, it is not known to be toxic. It is generally safe for pets, though supervision is always recommended.
How should Xerosicyos Danguyi be pruned?
Pruning is not mandatory but can help control growth. Trim overly long stems in late spring. The cuttings can also be propagated.
Does Xerosicyos Danguyi flower often?
Flowering is discreet and rare in cultivation. It may occur in summer if the plant receives strong light and moderate water stress.
How can you tell if Xerosicyos Danguyi has too much or too little water?
Soft or wilted leaves often indicate overwatering. Wrinkled or dropping leaves may signal underwatering. Adjust watering accordingly.
What fertilizer should be used for Xerosicyos Danguyi?
A cactus fertilizer applied once a month during the growing season is perfectly suitable.
Can Xerosicyos Danguyi live outdoors all year round?
Yes, in mild climates such as Mediterranean regions, provided it is protected from frost. Elsewhere, bring it indoors when temperatures drop below 10°C.
Can Xerosicyos Danguyi be trained to climb?
Yes, it is an excellent climbing plant. Provide a support or trellis to guide its growth and showcase its round coin-shaped leaves.