String of Frogs (Miniature Oakleaf Fig) care

Light

Bright but filtered. String of Frogs burns within days in unfiltered south-facing summer sun, and stops growing within months in deep shade. Best in bright, indirect light within a few feet of an east- or west-facing window; protect from harsh afternoon sun, which scorches the small leaves. It tolerates medium and even fairly low light (handy for terrariums) but grows slower and gets leggier there. 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 string of frogs: when the top 1-2 cm (top inch) of soil is dry, often 1-2x per week in spring/summer. 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. Keep the mix lightly and evenly moist; this cultivar is not drought-tolerant and the thin leaves crisp quickly if it dries out, yet soggy roots cause rot. Water thoroughly until it drains, then let the surface dry slightly. Cut back in autumn and winter as growth slows.

Soil and pot

String of Frogs grows best in well-draining, organic-rich potting mix. Use a peat- or coir-based houseplant mix amended with perlite or fine bark for drainage and a slightly acidic pH. The pot must have drainage holes. In terrariums it establishes in a moisture-retentive substrate over a drainage layer. 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 Frogs sits happiest at around 50% or higher; thrives at 60-80% humidity and 13-24 C (55-75 F). Loves humidity and is a classic terrarium plant. In average room air (often below 50%) leaf tips and edges go brown and crispy. Boost with a pebble tray, a humidifier, grouping with other plants, or growing in an enclosed case; misting helps only briefly. If you keep the room above 13 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 frogs sparingly. Feed monthly through spring and summer with a balanced liquid houseplant fertiliser (e.g. 10-10-10 or 5-5-5) diluted to about half strength; stop in autumn and winter. Ficus are sensitive to mineral-salt buildup, so flush the pot with plain water every couple of months and avoid over-feeding, which causes leggy 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 frogs in the Growli community. Each is annotated with the most common cause so you know where to start.

• Brown, crispy leaf tips and edges — The number-one issue: air that is too dry. Raise humidity above 50% with a humidifier, pebble tray or enclosed terrarium, and don't let the soil fully dry out.
• Sudden leaf drop — Triggered by shock — cold drafts, hot air from heating/AC vents, or inconsistent watering. Keep it away from vents and doors and maintain steady moisture and temperature.
• Wilting or shrivelling from underwatering — This cultivar is not drought-tolerant; if the whole plant droops and the mix is bone dry, water thoroughly and consider checking it more often. Persistent dryness kills the fine foliage fast.
• Yellowing leaves and mushy stems from overwatering — Soggy, poorly drained soil causes root rot. Use a well-draining mix, empty saucers, and let the top of the soil dry slightly between waterings.
• Sap-sucking pests (spider mites, scale, mealybugs, aphids, thrips) — Most likely on stressed or low-humidity indoor plants. Inspect regularly; treat with a firm rinse, insecticidal soap or horticultural oil and isolate affected plants.
• Leggy, sparse growth — Caused by too little light or over-fertilising. Move to brighter indirect light, feed only in the growing season at reduced strength, and pinch back stems to encourage bushier growth.

Propagation

Easiest by stem-tip cuttings in spring or early summer: take a healthy 8-15 cm (4-6 in) tip with several leaves, cut just below a node, and root in water or in moist, well-draining mix under high humidity (a covered tray or terrarium helps). The juvenile growth roots readily without rooting hormone, typically in 4-8 weeks. Avoid leaf-only cuttings — they lack the tissue to form roots. 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 Frogs is toxic to pets. Toxic to cats and dogs. Although 'String of Frogs' is not listed by that exact name, it is a cultivar of the true fig Ficus pumila, and the ASPCA classifies Ficus (Weeping Fig / Indian Rubber Plant, Ficus benjamina) as toxic to dogs, cats and horses. The milky latex contains ficin (a proteolytic enzyme) and psoralen (ficusin), causing oral and gastrointestinal irritation, drooling and vomiting if eaten, plus skin/dermal irritation on contact. Keep away from pets and wash hands after pruning; if ingestion is suspected, call your vet or the ASPCA Animal Poison Control Center. 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 Frogs deep-dive guides

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

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

Related guides

String of Frogs is also known as String of Frogs, Miniature Oakleaf Fig, Oakleaf Creeping Fig, and Mini Oakleaf Creeping Fig.

• Snake plant care — light, water and common problems
• Dracaena care — light, water and common problems
• Peperomia care — light, water and common problems
• All 609 plant care guides in the Growli library