String of hearts, also known by its botanical name Ceropegia woodii, is a vining succulent that is beloved for its heart-shaped foliage However, its delicate leaves can start curling up, which is a sure sign that something is wrong
Curling leaves on your string of hearts can happen for a few different reasons The most common causes are underwatering, overwatering, too much sun exposure, or cold drafts. But don’t worry – with the right care, you can get your string of hearts back to its beautiful cascading self again
What Causes String of Hearts Leaves to Curl?
Here are the most common reasons why the leaves on your string of hearts may be curling
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Underwatering – String of hearts stores water in its fleshy leaves, so when the soil dries out too much between waterings, the leaves start to shrivel and curl up to conserve moisture. This is the most common reason for curling.
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Overwatering – While string of hearts doesn’t like to dry out completely, too much moisture can lead to root rot. Damaged roots have trouble taking up water, causing the leaves to shrivel.
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Excess Sun – Too much direct sunlight can scorch the leaves of your string of hearts. The leaves will take on a thin, curled appearance as they try to minimize sun exposure.
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Cold Drafts – Strong air currents from AC vents, open windows, etc can quickly dry out string of hearts leaves. The leaves will curl up as they lose moisture.
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Pest Infestation – Insects like spider mites can suck nutrients and moisture from the leaves, causing them to curl. Check closely for any webbing or tiny pests.
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Incorrect Potting Mix – Soil that stays too wet can lead to root rot, while soil that doesn’t hold any moisture will cause underwatering issues.
How to Fix Curling String of Hearts Leaves
If your string of hearts leaves are curling, use these tips to get them back to good health:
1. Adjust the Watering
If you suspect underwatering, give your plant a good, thorough soak and make sure water is reaching the entire root zone. Then allow the soil to partially dry out before watering again. The leaves should start to plump up within a few days.
If you think overwatering is the issue, hold off watering until the soil has fully dried out. Check for any mushy, rotten roots and trim them away. Repot in fresh cactus/succulent mix if needed.
2. Move Out of Direct Sunlight
If sun scorch is the problem, move your string of hearts to a spot with bright indirect light. Dappled sun through a sheer curtain is ideal. This gives the leaves a break while still providing enough light for growth.
3. Protect from Drafts
Make sure your string of hearts is not situated in front of AC vents, heaters, or drafty windows. The constant airflow will dry out the leaves very quickly. Place it somewhere with stable indoor temperatures.
4. Treat Pest Problems
Check closely along the undersides of leaves and stem for any pests like spider mites. You may need to wipe leaves down with insecticidal soap or use a pesticide. Be sure to quarantine the plant away from others.
5. Repot in Fresh Soil
If you suspect your potting mix is causing watering problems, repot your plant in a high-quality cactus/succulent soil. This will provide better drainage and moisture retention. Gently loosen and aerate the root ball during repotting.
6. Increase Humidity
Low humidity can also cause leaves to dry out and curl up. Run a humidifier nearby or place the pot on a pebble tray to boost moisture levels around your plant.
7. Avoid Temperature Extremes
Make sure your string of hearts is not exposed to any sudden drops in temperature. Keep it above 50°F/10°C and avoid cold outdoor air if moving it inside/outside.
Caring for String of Hearts
Once you’ve fixed any curling leaves, be sure to care for your string of hearts properly to prevent future issues:
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Water thoroughly only when the top few inches of soil are dry. Avoid watering on a schedule.
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Use fast-draining cactus/succulent soil and provide drainage holes in the container.
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Give bright, indirect light indoors. Some morning sun is ok outdoors.
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Keep humidity moderate and avoid cold drafts.
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Allow the soil to dry between waterings and don’t oversaturate it.
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Watch for pests like spider mites that can drain moisture from leaves.
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Avoid temperature extremes and protect from frost.
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Rotate or prune elongated vines to encourage fullness.
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Fertilize during the growing season using a balanced houseplant fertilizer.
With the right troubleshooting and care, your string of hearts leaves will return to their beautiful cascading form in no time! Just be attentive to its watering, lighting, and environmental needs.
Common Causes of Leaf Curling
Underwatering is like sending your variegated string of hearts on a desert trek without a canteen. Leaves curl up, hoarding every precious drop of moisture like a miser with gold. Signs of thirst include leaves that feel as crispy as autumn leaves underfoot. If the pot lifts with the ease of a helium balloon, its time to break out the watering can.
Discoloration: A Visual Shout
When leaves flaunt colors of yellow or brown, or sport dry spots, its time to tune in to your plants needs.
SUCCULENT CARE TIPS | CURLING OR WRINKLED LEAVES IN STRING OF HEARTS | CAUSES AND SOLUTIONS
FAQ
What does overwatered String of Hearts look like?
It is easy to overwater your String of hearts so be careful of these signs. Leaves will drop and the leaves will discolour from their characteristic grey-green hue with a hint of lilac to yellow/brown.
What to do if my plant leaves are curling?
CAUSE: Heat stress causes rapid evaporation, so plants curl up to conserve moisture. Plants too close to high-intensity lights are prone to heat stress, but it can be a problem in any room where temperatures are persistently above 80 degrees F. QUICK FIX: Set up fans to blow out hot air and bring in cooler fresh air.
Why are the leaves curling on my broken heart plant?
If your Philodendron isn’t getting enough water, the leaves start curling. It can also happen due to overwatering which will drown the roots and cause root rot. However, unlike overwatering, underwatering can be easily remedied by watering more regularly.