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String of Hearts

What's Wrong with My String of Hearts?

Ceropegia linearis subsp. woodii
Reviewed by Kiersten Rankel M.S.
Quick Answer
1.
Light is behind most problems.
Sparse strings, faded silver patterns, and dropping leaves all trace back to too little light. String of Hearts is a sun-seeker that wants bright, direct-ish light for several hours a day.
2.
Check watering if light looks fine.
The thin tuberous roots rot faster than most vines when kept wet. Wrinkled leaves mean thirsty, yellow leaves mean too much water.
3.
New tiny leaves at the vine tips mean it's recovering.
Fresh leaf pairs pushing out at the end of each string are the clearest sign the plant is still healthy. New aerial tubers forming along the stem are a second signal that growth is on track.
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Common String of Hearts Problems

Sparse strings Yellow leaves Wrinkled leaves Mushy base Faded silver pattern Pests

Sparse strings

Not enough light

String of Hearts is native to southern African hillsides where it scrambles in full sun. In dim indoor spots, the vine stretches long gaps between leaves as it reaches for light, and the heart-shaped pairs become smaller and widely spaced. The compact, lush curtain of leaves never develops without bright exposure.

1. Move to the brightest spot available, ideally a south or east window with several hours of direct sun.
2. If only filtered indoor light is available, hang the pot as close to the glass as possible.
3. The stretched stem gaps will not close, but new growth from that point onward should be denser once light improves.

Yellow leaves

Overwatering

String of Hearts has a tuberous root system built to survive dry seasons, not moist indoor soil. The thin roots rot quickly when kept wet, and the plant pulls resources back from leaves as the roots fail. Yellowing and mushy leaf texture are the first visible sign the roots are already struggling.

1. Stop watering and let the soil dry out completely before the next drink.
2. Press the soil surface. If it is still damp a week later, the pot may lack drainage or the mix is too dense.
3. Once the soil is fully dry, resume watering and wait until the top half of the pot is dry again before the next watering.
Normal leaf drop

As new growth pushes out along the vine tips, the oldest leaves at the base of a string occasionally yellow and drop. If just a few inner leaves are affected and the vine tips look healthy, the plant is simply redirecting energy toward new growth.

Wrinkled leaves

Underwatering

String of Hearts stores water in both its leaves and its underground tuber, so the leaves are usually the last to show drought stress. When the tuber reserves run low, the small heart-shaped leaves pucker and wrinkle. Recovery is fast once the plant gets a thorough drink.

1. Water thoroughly until it drains from the bottom of the pot.
2. Leaves should plump back out within a day or two.
3. If they stay wrinkled after watering, check whether the roots are still intact and not rotted.

Mushy base

Root rot from overwatering

When the tuberous roots stay wet too long they rot, and the damage travels up into the main crown and along the stems. The thin purple stems turn translucent and collapse quickly once rot reaches them. This moves fast on String of Hearts because the tuber is compact and close to the soil surface.

1. Remove the plant from its pot and brush away the soil from the tuber.
2. Cut away any soft or dark-colored root and tuber tissue until you reach firm, healthy tissue.
3. Let the cut surfaces air-dry for a day before repotting in fresh, dry, gritty cactus mix.
4. Hold off watering for at least two weeks to let the roots stabilize.

Faded silver pattern

Low light

The silver marbling on String of Hearts leaves is produced by cells near the surface that reflect light. In low-light conditions, the plant puts less energy into surface pigmentation and more into chlorophyll, causing the silver to wash out to a flat green. Leaves grown in bright light retain sharp, contrasting silver patterns.

1. Move the plant to a brighter spot with more direct sun exposure.
2. New leaves grown in better light will show the silver pattern more vividly. Existing faded leaves will not change.

Pests

Mealybugs

White cottony tufts tucked into the joints where leaves meet the stem, or nestled around the base of the tuber. Mealybugs are the most common pest on String of Hearts because the closely spaced leaf pairs give them sheltered spots along every string to hide and feed.

1. Dab each cluster with a cotton swab dipped in 70% isopropyl alcohol.
2. Follow up with an isopropyl spray over all the strings, working into each leaf joint.
3. Repeat every five to seven days for three weeks to catch newly hatched eggs.

Preventing String of Hearts Problems

A few consistent habits prevent most of what goes wrong with String of Hearts.
Monthly Check
1
Give it the brightest spot you have.
A south or east-facing window with direct sun for several hours a day keeps growth dense and the silver pattern vivid. Low light is the top cause of sparse, leggy strings and faded leaves.
2
Water only when the top half of the pot is dry.
The tuberous roots store moisture and rot quickly if kept wet. In most indoor conditions that means watering every ten to fourteen days in summer and less in winter. Always let the soil dry well between drinks.
3
Use a gritty, fast-draining mix in a pot with a drainage hole.
A blend of cactus mix and perlite gives the small root system the air gaps it needs. Standing water in a saucer is how rot starts on this vine.
4
Inspect the leaf joints whenever you water.
Mealybugs hide in the tightly spaced nodes along each string. Catching them early means a cotton swab instead of weeks of treatment.
5
Repot into fresh mix every two years.
The underground tuber expands over time and can crack thin nursery pots. Fresh, gritty mix also resets drainage before the old medium compacts and traps moisture around the roots.
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About This Article

Kiersten Rankel M.S.
Kiersten Rankel M.S.
Botanical Data Lead at Greg · Plant Scientist
About the Author
Kiersten Rankel holds an M.S. in Ecology & Evolutionary Biology from Tulane University. A certified Louisiana Master Naturalist, she has over a decade of experience in science communication, with research spanning corals, cypress trees, marsh grasses, and more. At Greg, she curates species data and verifies care recommendations against botanical research.
See Kiersten Rankel's full background on LinkedIn.
Editorial Process
Every problem and fix in this article was verified against Greg's botanical database, cross-referenced with USDA hardiness zone data and published horticultural research from the Missouri Botanical Garden, university extension programs, and species-specific literature. The Ceropegia linearis subsp. woodii care profile reflects documented species behavior combined with years of community grower feedback in Greg.
12,192+ Greg users growing this plant
USDA hardiness zones 10a–11b
Citations:
NC State Extension
Royal Horticultural Society
How we review plant care articles → Last updated: May 2026
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