String of Tears (String of beads) care

Light

In the wild string of tears grows on the bright edge of a forest canopy, not in the canopy and not in the open. Indoors, that translates to within a metre of an unobstructed window, sheer curtain optional. Wants several hours of bright, filtered light daily, ideally near an east or shaded south/west window. Direct midday summer sun can scorch the beads, while too little light causes leggy, sparse strands and fades the attractive purple tints. A few hours of gentle morning sun deepens leaf colour. The fastest test: a hand held at the leaf casts a soft-edged shadow at noon — sharp shadow means too much sun, no shadow means too little light.

Watering

Aim for roughly every 7-14 days in spring and summer; about once a month in winter. for string of tears, but treat that as a starting point rather than a rule. A south-facing summer windowsill will dry the pot twice as fast as a north-facing winter room. Lift the pot; if it feels noticeably lighter than it did wet, water it. Use the soak-and-dry method: water thoroughly until it drains, then let the potting mix dry out completely before watering again. Beads that look plump and firm signal good hydration; shrivelled, deflated beads mean it is thirsty. Overwatering is the leading killer, causing soft, mushy stems and root rot, so always err on the dry side.

Soil and pot

String of Tears grows best in free-draining cactus and succulent mix amended with plenty of mineral grit.. Blend a cactus/succulent compost with 50-70% coarse grit such as pumice, perlite, or sharp sand so water rushes through fast. Always use a pot with drainage holes; this shallow-rooted succulent rots quickly in dense, moisture-retentive soil that stays wet. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

String of Tears sits happiest at around Around 30-50%; average household humidity is fine. humidity and 15-29 C (60-85 F). As a dry-climate succulent it prefers low to moderate humidity and good airflow, and dislikes damp, stagnant conditions. There is no need to mist; excess moisture on the beads and around the stems only encourages rot and fungal issues. If you keep the room above 15 year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed string of tears sparingly. A light feeder. Apply a balanced liquid houseplant or cactus fertiliser diluted to about half strength once a month, or even just a few times across the spring-to-summer growing season. Do not feed in autumn and winter when growth slows, and avoid over-fertilising, which produces weak, stretched growth. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on string of tears in the Growli community. Each is annotated with the most common cause so you know where to start.

• Root and stem rot — The most common and lethal issue, caused by overwatering or poorly draining soil. Stems and beads turn soft, mushy, yellow, or translucent. Cut away healthy strands to propagate and start over in a grittier mix.
• Shrivelled, deflated beads — Wrinkled or flattened beads usually mean underwatering or prolonged drought. Give a thorough soak and they should plump back up within a day or two; persistent shrivelling can also signal damaged roots.
• Leggy, sparse growth — Long gaps between beads and loss of purple colouring indicate too little light. Move to a brighter spot with bright indirect light and trim leggy strands to encourage fuller growth.
• Mealybugs — White, cottony clusters hide between beads and at leaf joints, sapping the plant. Dab them with a cotton swab dipped in rubbing alcohol or treat with insecticidal soap, repeating until clear.
• Aphids and spider mites — Sap-sucking aphids and spider mites can cause yellowing, stippling, or fine webbing, often on new growth. Rinse off, improve airflow, and treat with insecticidal soap or neem if they persist.
• Sunburn — Harsh, direct midday sun scorches the beads, leaving bleached, brown, or papery patches that do not recover. Provide bright but filtered light and acclimatise gradually to any stronger sun.

Propagation

Very easy from stem cuttings. Snip a healthy strand a few centimetres long, let the cut end callus for a day or two, then lay it on or shallowly press it into gritty succulent mix and keep barely moist until roots form. Pieces also root readily where beads touch the soil, so you can pin a strand down on the surface to multiply the plant. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

String of Tears is mildly toxic to pets. Curio herreanus is not individually listed in the ASPCA toxic-plant database, but the ASPCA names its near-identical relative, string of pearls (Senecio rowleyanus), as causing stomach upset (mainly vomiting) and lethargy, and lists the wider Senecio group as toxic due to pyrrolizidine alkaloids. Because the genus is not clean, treat string of tears as mildly toxic to cats and dogs, keep it out of reach, and verify with your vet if a pet ingests any. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

String of Tears deep-dive guides

Every aspect of string of tears care, each with its own calibrated guide:

• String of Tears watering schedule
• String of Tears light requirements
• Best soil mix for string of tears
• String of Tears fertilizing guide
• When to repot string of tears
• How to propagate string of tears
• String of Tears growth rate & size
• String of Tears cold hardiness
• String of Tears temperature & humidity
• Is string of tears toxic to cats & dogs?

Related guides

String of Tears is also known as String of tears, String of beads, String of watermelons, String of raindrops, and Gooseberry plant.

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