String of Hearts Care (Ceropegia woodii)
Last Updated: June 2026
TL;DR
String of Hearts is a delicate-looking but surprisingly tough trailing succulent from South Africa. Give it bright light, let it dry out completely between waterings, and use gritty well-draining soil. It's non-toxic to pets, propagates easily via the butterfly method or tuber cuttings, and comes in gorgeous varieties including Silver Glory, variegated, and the angular String of Spades. The biggest mistake people make? Overwatering — those little tubers rot fast in wet soil.
| Factor | Requirement |
|---|---|
| Botanical Name | Ceropegia woodii |
| Light | Bright indirect to some direct sun — east or south window ideal |
| Watering | Let soil dry completely between waterings |
| Humidity | Low to average — no special humidity needed |
| Temperature | 60-80°F (15-27°C); tolerates brief dips to 50°F |
| Soil | Very fast-draining — cactus mix with extra perlite or pumice |
| Toxicity | Non-toxic — safe for cats and dogs |
String of Hearts Varieties
While the classic green-and-silver Ceropegia woodii is the most common, several stunning varieties and related species have become popular in recent years:
| Variety | Notable Features |
|---|---|
| Standard Green | Dark green leaves with silver marbling on top, purple undersides; the classic form |
| Silver Glory | Heavily silvered leaves appearing almost entirely grey-silver with deep maroon undersides |
| Variegated (SOH Variegata) | Cream, pink, and green variegation; pink coloring intensifies in bright light |
| String of Spades | Narrower, angular spade-shaped leaves; darker green; sometimes classified as C. linearis subsp. woodii |
| String of Daggers (C. stapeliiformis) | Cylindrical, dagger-like leaves on trailing stems; a related species, not a C. woodii cultivar |
String of Hearts in the Wild
Ceropegia woodii is native to South Africa, Eswatini (Swaziland), and Zimbabwe, where it grows in rocky, semi-arid environments. In the wild, you'll find it trailing from rocky outcrops and cliff faces, cascading down from crevices where its tuberous root system anchors into thin pockets of gritty soil.
This natural habitat tells you everything about care: the plant is adapted to sharp drainage, bright light, and periods of drought followed by seasonal rains. Its underground tuber stores water and nutrients, acting as a survival mechanism during dry spells. Small aerial tubers also form along the vines, serving as both water storage and a means of vegetative reproduction — if a vine breaks off, the tuber can root wherever it lands.
Wild String of Hearts produces fascinating tubular, lantern-shaped flowersthat temporarily trap small flies for pollination — a clever evolutionary adaptation shared across the Ceropegia genus. While indoor plants can flower (the blooms are small and pinkish-purple), it requires bright light and a plant that's well-established with mature tubers.
Light Requirements
String of Hearts needs bright light to thrive. An east-facing window with gentle morning sun is ideal, and south-facing windows work well too — this plant can handle a few hours of direct sun, especially morning light. In fact, some direct sun intensifies the purple undersides and silver patterning on the leaves.
For the Silver Glory variety, bright light is especially important to maintain the intense silver coloring. The variegated form benefits from bright indirect light but is slightly more susceptible to sunburn on the cream-colored leaf sections, so avoid harsh afternoon sun.
In low light, the vines become leggy with wide spacing between leaves, and the heart-shaped foliage stays small and loses its coloration. If your plant is stretching, it needs more light. See our indoor lighting guide for more tips on optimizing your setup.
Watering and Soil
The golden rule: let the soil dry out completely before watering. String of Hearts stores water in its tubers and semi-succulent leaves, making it far more tolerant of drought than excess moisture. A good test is to gently squeeze a leaf — plump and firm means it's hydrated; thin and flexible means it's time to water.
In summer, this typically means watering every 10-14 days. In winter, reduce to every 3-4 weeks. When you do water, drench the soil thoroughly and let it drain completely. Never let the pot sit in a saucer of water — the tubers will rot.
Use a very fast-draining soil mix: cactus/succulent soil mixed with extra perlite or pumice at roughly a 1:1 ratio. The soil should dry out within a few days of watering. A shallow pot (like a half-pot or bulb pan) works better than a deep one, since the root system is shallow and centered around the tuber. For foundational soil and watering info, check our houseplant care basics.
Propagation: Butterfly Method and Tubers
String of Hearts is a joy to propagate, and the butterfly method is the most popular technique. Cut vine segments so each piece has a node with two leaves (resembling a butterfly). Lay these flat on moist sphagnum moss or a perlite-soil mix with the node touching the surface. Keep in bright indirect light and mist lightly every few days. Roots and new growth appear in 2-4 weeks.
Tuber propagationis even easier. The small, bead-like aerial tubers that form along the vines are nature's built-in propagation system. Simply press a tuber into moist soil while it's still attached to the mother plant, pin it down gently, and wait for roots to form. Once you see new growth from the tuber, snip the vine to separate it.
You can also root vine cuttings in water, though this method is slower and the water-grown roots may struggle to transition to soil. Whichever method you choose, spring and early summer are the best times to propagate.
Common Mistakes to Avoid
- ✗Overwatering. The #1 killer of String of Hearts. Tuber rot from soggy soil is almost always fatal — let the soil dry completely between waterings.
- ✗Heavy, moisture-retentive soil. Standard potting mix holds too much water. Always use a gritty, fast-draining cactus mix with extra perlite.
- ✗Too little light. Low light causes leggy vines with tiny, widely-spaced leaves and washed-out coloring. Give it a bright window.
- ✗Misting the foliage. String of Hearts doesn't need humidity, and wet leaves sitting on tangled vines can promote fungal issues. Water the soil only.
- ✗Deep pots. The shallow tuber-based root system doesn't need depth. Deep pots hold excess moisture below the roots, increasing rot risk.
Related Resources
Frequently Asked Questions
String of Spades (sometimes classified as Ceropegia linearis subsp. woodii) has narrower, more elongated spade-shaped leaves compared to the classic heart shape of standard Ceropegia woodii. The foliage is typically darker green and more angular. Care requirements are identical for both — bright indirect light, infrequent watering, and well-draining soil. Some taxonomists consider them the same species with natural leaf shape variation.
The easiest methods are the butterfly method and tuber propagation. For the butterfly method, cut vine segments with two leaves, lay them flat on moist sphagnum moss with the nodes touching the surface, and keep them in bright indirect light. Roots form in 2-4 weeks. For tuber propagation, press the small aerial tubers (beads that form along the vine) into moist soil while still attached to the mother plant. Once rooted, cut the vine to separate the new plant.
Water only when the soil is completely dry and the leaves feel thin and flexible rather than plump and firm. This is typically every 10-14 days in summer and every 3-4 weeks in winter. String of Hearts stores water in its tubers and semi-succulent leaves, making it highly drought-tolerant. Overwatering causes tuber rot, which is the most common way to kill these plants.
Silver Glory is a cultivar of Ceropegia woodii with heavily silvered leaves that appear almost entirely grey-silver on top, with deep purple-maroon undersides. The silver coloring is more pronounced and uniform than on standard String of Hearts. Care is identical to the regular form, though bright light helps maintain the intense silver coloring.
String of Daggers refers to Ceropegia stapeliiformis (and related species), which produces narrow, elongated, cylindrical leaves that resemble small daggers or needles along trailing stems. Unlike String of Hearts, the leaves are tubular rather than flat. It is somewhat rarer in cultivation and requires the same bright light and infrequent watering, but is slightly more sensitive to overwatering.
No, String of Hearts (Ceropegia woodii) is non-toxic to cats and dogs. All varieties — including Silver Glory, variegated, and String of Spades — are safe for pet-friendly households. This makes it an excellent choice for hanging planters in homes with curious animals.
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