Curio Citriformis (string of teardrops) care

Light

Bright but filtered. Curio Citriformis burns within days in unfiltered south-facing summer sun, and stops growing within months in deep shade. Wants very bright indirect light with a little gentle direct sun. Strong light keeps leaves plump, blue and closely spaced; low light yields thin, stretched strands. If you only have a south window, set the plant back 1.5 m or hang a sheer curtain — both knock the intensity down into the right range.

Watering

Watering curio citriformis: when the top of the soil is dry, about every 10-14 days in summer; every 3-4 weeks in winter. The number that matters isn't the day of the week — it's how dry the top 2-3 cm of the pot feels. A finger in the soil tells you more than a watering app. After every watering, tip the saucer. Soak then let the lean mix dry before watering again. The teardrop leaves store water well; deflated, wrinkled leaves signal thirst, while mushy ones signal overwatering and rot.

Soil and pot

Curio Citriformis grows best in gritty, fast-draining succulent mix. Use a cactus/succulent blend with added pumice or perlite for sharp drainage. Shallow, quick-drying pots suit the shallow, rot-prone root system. 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

Curio Citriformis sits happiest at around 30-50% humidity and 18-26°C (65-79°F). Prefers ordinary, drier indoor air with good airflow. Avoid misting and damp, stagnant conditions, which encourage rot in the trailing stems. If you keep the room above 18 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 curio citriformis sparingly. Feed sparingly with a dilute, low-nitrogen succulent fertiliser at half strength once a month in spring and summer. Avoid feeding in the cooler, dormant months. 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 curio citriformis in the Growli community. Each is annotated with the most common cause so you know where to start.

• Overwatering and root rot — Mushy, yellowing teardrops and collapsing strands mean too much water. Let the gritty mix dry fully and ensure the pot drains freely.
• Shrivelled teardrops — Wrinkled, soft leaves indicate under-watering or heat stress. A thorough soak usually re-plumps them within a day or two.
• Thin, stretched strands — Leggy growth with gaps between leaves signals too little light. Move to a brighter window for denser, plumper trails.
• Mealybugs — White cottony pests gather at nodes and leaf joints. Treat with isopropyl alcohol or insecticidal soap and isolate while treating.

Propagation

Easy from stem cuttings: lay or insert cuttings on gritty mix and keep lightly moist; nodes root within a couple of weeks. Coiling longer strands on the surface roots them at several points. 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

Curio Citriformis is toxic to pets. The ASPCA classes Curio/Senecio succulents as toxic to cats and dogs, reporting vomiting and lethargy and an irritant sap linked to pyrrolizidine-type compounds. Keep string of teardrops out of pets' reach. 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.

Curio Citriformis deep-dive guides

Every aspect of curio citriformis care, each with its own calibrated guide:

• Curio Citriformis watering schedule
• Curio Citriformis light requirements
• Best soil mix for curio citriformis
• Curio Citriformis fertilizing guide
• When to repot curio citriformis
• How to propagate curio citriformis
• Curio Citriformis growth rate & size
• Curio Citriformis cold hardiness
• Curio Citriformis temperature & humidity
• Is curio citriformis toxic to cats & dogs?
• Is curio citriformis toxic to cats?
• Is curio citriformis toxic to dogs?

Featured in these plant shortlists

Curio Citriformis qualifies for 5 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

• Best plants for a north-facing window — Houseplants for a north-facing window: bright, even, indirect light and no scorching direct sun. Each pick verified against its documented light needs.
• Best drought-tolerant houseplants — Houseplants that prefer to dry out — forgiving of forgotten watering and ideal for travel or busy weeks.
• Best trailing & climbing houseplants — Vining and trailing houseplants for shelves, hanging pots, and moss poles — selected by growth habit.
• Houseplants toxic to cats & dogs — The common houseplants the ASPCA lists as toxic to cats and dogs — the ones to keep out of reach, each with its symptoms and a safe alternative.
• Best succulents for beginners — The easiest succulents and cacti to keep alive — selected by documented growth habit, each with the light and watering it actually wants.
• Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Curio Citriformis is also commonly called string of teardrops or lemon bean plant.

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