Light
Bright, indirect
Ideal spot
Curio rowleyanus 'String of Pearls' · Trailing plant
Bright, indirect
Ideal spot
every 1–2 weeks
In the growing season
Moderate
Moderate grower
Toxic
Cats & dogs
String of Pearls (Curio rowleyanus 'String of Pearls') belongs to the Asteraceae family and is a moderate houseplant to look after. This moderate grower plant is happiest in bright, indirect and reaches 30–90 cm indoors.
For watering, the rule is simple: drought-tolerant. In the growing season it needs water roughly every 14 days, dropping to every 26 days in winter. Use the watering calculator below to tune that rhythm to your pot size, light and household humidity.
Important: String of Pearls is toxic to pets — keep it out of reach of cats, dogs and children.
Set your pot size, light and humidity — the calculator tunes the watering rhythm to your home.
Light at the spot
Humidity
Season
Water String of Pearls
every 14 days
≈ every 1–2 weeks · 2.1× per month
Let the top 2–3 cm dry and finger-check before watering again.
String of Pearls prefers bright, indirect but will cope with bright, indirect. Harsh midday sun can scorch sensitive leaves, while too little light leads to leggy, sparse growth.
Keep String of Pearls between 15–28 °C and aim for around 35% humidity (20% minimum). Below 7 °C it risks cold damage — keep it away from draughty windows and radiators.
15–28 °C
Not below 7 °C
35%
20% minimum
Drought-tolerant
Soil between waterings
Pot String of Pearls in gritty, fast-draining succulent mix. A drainage hole is essential — soggy, airless soil is the single most common way houseplants die.
String of pearls and its relatives are toxic to cats, dogs and people, causing vomiting, drooling and skin irritation — hang well out of reach.
The best ways to propagate String of Pearls are stem cuttings and layering. Late spring and summer are ideal, when the plant is growing most actively.
Each spherical 'pearl' is a modified leaf with a translucent window stripe that lets light penetrate deeper, maximising photosynthesis while minimising water loss.
In the growing season String of Pearls needs watering every 1–2 weeks (about every 14 days in a 16 cm pot at medium light), and much less in winter — roughly every 26 days. Use the watering calculator above to get the exact interval for your conditions.
String of Pearls thrives in bright, indirect. A spot near a bright window out of harsh midday sun is ideal; give it a little more light in winter.
String of Pearls is toxic to pets. String of pearls and its relatives are toxic to cats, dogs and people, causing vomiting, drooling and skin irritation — hang well out of reach.
The most common problem with String of Pearls is root rot from overwatering. Check your watering and drainage first — most issues trace back to too much or too little water.
The best ways to propagate String of Pearls are stem cuttings and layering. Late spring and summer are ideal, when the plant is growing most actively.
Indoors String of Pearls typically reaches 30–90 cm. With the right light and occasional repotting it stays compact and bushy.
Care data last verified on 15 June 2026.
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