String of pearls (string of beads) care

Light

String of pearls is a sun-lover and needs the brightest spot in the home to thrive. 4-6 hours of bright light, with some direct sun. A south or east-facing window is ideal; insufficient light produces sparse strands and shrivelled pearls. Indoors that almost always means a south or west-facing windowsill in the northern hemisphere. Plants moved abruptly from low light to direct sun will scorch — acclimate them over 7-10 days by giving a little more sun each day.

Watering

Water string of pearls when the soil is completely dry, every 2-3 weeks. Succulents and succulent-like plants store enough water in their stems and leaves that they would rather be slightly thirsty than slightly soggy — and the most common way to kill one is by watering on a fixed weekly calendar instead of by feel. Water deeply and let the soil dry fully between drinks. Shrivelled pearls signal thirst; mushy pearls signal overwatering.

Soil and pot

String of pearls grows best in gritty cactus or succulent mix. Coarse cactus mix or 1:1 potting compost and perlite. A shallow pot suits the shallow roots. 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 pearls sits happiest at around 30-50% humidity and 18-24°C (65-75°F). Dry household air is ideal. 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 string of pearls sparingly. Quarter-strength cactus feed every 6-8 weeks during the growing season only. 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 pearls in the Growli community. Each is annotated with the most common cause so you know where to start.

• Shrivelled pearls — Underwatering; soak thoroughly.
• Mushy pearls — Overwatering or root rot — let dry out fully.
• Bald top of pot with strands trailing only — Lay strands on the soil surface so they root and refill the centre.
• Leggy thin strands — Insufficient light; move closer to a window.

Companion plants

String of pearls pairs well with String of hearts, Hoya, and Jade plant. These are species with similar light and water needs, so you can group them in the same room or on the same shelf and water as a batch.

Propagation

Lay a strand of pearls on moist mix in a shallow tray; roots form at every node within 3-4 weeks. 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 pearls is toxic to pets. ASPCA lists Curio (Senecio) rowleyanus as toxic to cats, dogs and horses due to alkaloids. Ingestion causes drooling, vomiting, lethargy and skin irritation. 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 pearls deep-dive guides

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

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

Related guides

String of pearls is also commonly called string of beads or rosary plant.

• Snake plant care — light, water and common problems
• Dracaena care — light, water and common problems
• Peperomia care — light, water and common problems
• All 200 plant care guides in the Growli library