Silver Dollar Vine (Xerosicyos danguyi)

Silver Dollar Vine

Xerosicyos danguyi
Care level: Easy

Native to the dry forests of Madagascar, Xerosicyos danguyi is a member of the cucumber and squash family that adapted to drought by turning its leaves into thick, round, coin-shaped water stores, an unusual succulent strategy for a vine relative more commonly known for melons and gourds.

I have this plant

Information

Varieties and related species
Xerosicyos perrieri

Light

Needs bright light with some direct sun to keep its round leaves compact and healthy.

Water

Very drought-tolerant vine; let soil dry out completely between waterings, about every 2-3 weeks.

Humidity

Tolerates dry indoor air well.

Soil

Fast-draining succulent or cactus mix.

Temperature

Normal room temperatures. Keep it above 12°C in winter.

Best position

  • south-east / south / south-west-facing windowanywhere up to about 1 m from the window
  • east / west-facing windowright by the window
See every window direction Hide window directions
Best positionright by the windowabout 1 mabout 2 mabout 4 m4 m or more
northtoo darktoo darktoo darktoo darktoo dark
north-easttoo darktoo darktoo darktoo darktoo dark
eastworks welltoo darktoo darktoo darktoo dark
south-eastworks wellworks welltoo darktoo darktoo dark
southworks wellworks welltoo darktoo darktoo dark
south-westworks wellworks welltoo darktoo darktoo dark
westworks welltoo darktoo darktoo darktoo dark
north-westtoo darktoo darktoo darktoo darktoo dark

works well just about too dark too much direct sun

A rough guide based on window direction and typical daylight through the year. Window size, curtains and whatever stands outside matter just as much.

Pet safety not confirmed

As a precaution, keep it out of reach of children and pets.

Did you know?

Despite its succulent, drought-proof leaves, Silver Dollar Vine is botanically a cucurbit, the same family as cucumbers, pumpkins, and melons, and it climbs using the same curling tendrils those relatives use, just adapted for a much drier life.

Care by Season

Spring

Resume regular watering as tendrils and new leaves emerge.

Summer

Provide a trellis or support for climbing and water once soil is fully dry.

Autumn

Reduce watering as growth slows.

Winter

Keep quite dry and away from cold drafts, ideally above 12°C.

Growing & Maintenance

Soil and pot

A fast-draining succulent or cactus mix in a pot with drainage holes.

Support

A small trellis or hoop. The tendrils curl around it by themselves.

Pests & Diseases

Common problems

Wrinkled, deflated leaves

Most likely cause: The plant is using up its stored water after a long dry spell.
What to do: Water deeply, let the pot drain and wait until the mix is dry again.

Soft, yellow leaves

Most likely cause: Overwatering.
What to do: Let the mix dry out completely between waterings.

Long stems with widely spaced leaves

Most likely cause: Too little light.
What to do: Move it to bright light with some direct sun.

Stems flopping over

Most likely cause: Nothing to climb.
What to do: Give it a small trellis or hoop.

Leaves dropping in winter

Most likely cause: A cold draught, or temperatures below 12°C.
What to do: Move it to a warmer, draught-free spot and keep it quite dry.

Pests & Diseases

Mealybugs

Signs: White cottony clusters along stems and leaf bases
Treatment: Dab with rubbing-alcohol cotton swab and repeat weekly. Check the undersides of the leaves and the crevices where the leaf stem meets the main stalk.

Spider mites

Signs: Fine webbing and stippled discoloration on leaves
Treatment: Increase humidity slightly and treat with insecticidal soap. Check the undersides of the leaves and the crevices where the leaf stem meets the main stalk.

Root rot

Signs: Soft, shriveling stems and mushy roots from overwatering
Treatment: Remove from wet soil, trim rotten roots, and repot in dry, gritty mix.

FAQ

Does Silver Dollar Vine need something to climb?

It benefits from one, this plant produces thin curling tendrils and grows as a vine in habitat, so a small trellis, moss pole, or stake gives it support and encourages fuller, more even growth than letting it sprawl.

Why are my Silver Dollar Vine leaves wrinkling?

Wrinkled, slightly deflated round leaves usually mean the plant is drawing on its stored water reserves and is ready for a drink, it's a normal drought signal in this species, not necessarily a sign of damage.

How often should I water a Silver Dollar Vine?

About every 2-3 weeks, once the mix has dried out completely. Keep it quite dry in winter.

How much light does a Silver Dollar Vine need?

It needs bright light with some direct sun. In weaker light the stems stretch and the round leaves sit far apart.

How do I care for a Silver Dollar Vine in winter?

Keep it quite dry and above 12°C. Move it away from cold windows and draughts.

What soil does a Silver Dollar Vine need?

A fast-draining succulent or cactus mix. Dense compost that stays wet leads to root rot.

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