Short answer
String of hearts (Ceropegia woodii) is generally grown and cared for like a succulent. It stores water in its thick, fleshy leaves and in small tubers, which means it can cope with dry spells and does not like to sit in wet soil. Botanically it is not a classic succulent like an echeveria (see Is Echeveria an indoor plant?), so you may see it described as a succulent-like or semi-succulent plant. For practical care, treat it as a plant that prefers to dry out between waterings.
Why it counts as a succulent
- Water storage: The leaves are somewhat thick, and the plant forms small tubers along the stems and at the roots that hold water and energy.
- Dry-spell tolerance: It usually recovers better from underwatering than from overwatering.
- Soil needs: It does best in a fast-draining, gritty mix, like most succulents.
Where it differs from desert succulents
Many desert succulents tolerate full, hot sun. String of hearts comes from drier regions of southern Africa but often does well in bright, filtered light indoors, and it is not as drought-hardened as a cactus. Its thin stems can dry out quickly, so it is a plant of balance: not constantly wet, but also not neglected for months. Its flowers are small and tube-shaped, and are an unusual feature compared with most houseplant succulents.
Light and placement
Bright light is the single most helpful thing you can offer. A spot near a south, east or west-facing window, with some protection from the harshest midday sun, generally works well. In low light the stems stretch, leaves get smaller and the pretty marbling can fade. Hanging baskets and high shelves show the trailing stems off best. Keep it away from cold drafts and heating vents.
Watering
There is no universal schedule, because it depends on light, pot size, season and how fast the soil dries. A common approach is to water thoroughly, let the water drain, then wait until the soil is dry through most of the pot before watering again. Water less in winter when growth slows; see succulent plants care in winter. If the leaves look wrinkled and soft, the plant may be thirsty; if the stems turn mushy or black near the base, overwatering is a likely cause.
Soil, pots and feeding
- Use a cactus or succulent mix, ideally with extra perlite or grit.
- Choose a pot with drainage holes. Terracotta dries faster and suits people who tend to overwater.
- Shallow pots are often suitable because the roots are fairly fine.
- Feed lightly during active growth in spring and summer, using a diluted fertiliser. Skip it in winter.
Does it climb or hang?
Both are possible. String of hearts is usually seen hanging, but its thin stems can twine around a small trellis or hoop if you guide them. For a full comparison of plants that hang or climb, see our guides to indoor plants that grow downwards and the best climbing plants indoors.
Common problems
- Long gaps between leaves: Usually not enough light.
- Wrinkled or limp leaves: Possibly underwatering, or damaged roots from overwatering.
- Yellow leaves and soft stems: Often overwatering or poor drainage.
- Sparse top growth: Trim the vines and tuck cuttings back into the soil to fill out the pot.
- Pests: Check for mealybugs and aphids, especially in the leaf joints.
Pet safety
String of hearts is commonly listed as non-toxic to cats and dogs, for example by the ASPCA. Even so, eating any plant can cause stomach upset, and the dangling stems can tempt curious pets. For safety, keep it out of reach, and contact a vet if your pet eats a large amount or seems unwell.
FAQ
How often should I water string of hearts?
When the soil has dried out through most of the pot. This varies from roughly every couple of weeks to much less often depending on conditions.
Where is the best place to put string of hearts?
A bright spot with indirect or gently filtered light, such as near an east or west-facing window.
Do strings of hearts like to climb or hang?
They can do either, but most people let them hang.