Watering schedule

How often to water String of pearls (Curio rowleyanus (formerly Senecio rowleyanus)) — the schedule

Also called string of beads, rosary plant.

About String of pearls

Curio rowleyanus (formerly Senecio rowleyanus) · also called string of beads, rosary plant · houseplant

String of pearls is a trailing African succulent grown for its dangling strands of pea-shaped leaves. It demands strong light and very sparse watering. Beautiful, brittle, and toxic to pets.

Senecio (Curio) rowleyanus is a trailing succulent in the daisy family native to dry areas of the eastern Cape of South Africa, where it creeps along the ground beneath shrubs and between rocks that shade it from intense sun.

Each spherical leaf is a water-storage organ, so the soil should dry out completely between waterings; reduce water further during the cooler winter rest, as overwatering is the fastest way to collapse the strands.

Ideal humidity: 30-50%

Watch for — Shrivelled pearls: Underwatering; soak thoroughly.

Sources: hort.extension.wisc.edu, plants.ces.ncsu.edu, en.wikipedia.org

The watering schedule, season by season

String of pearls stores water in its thick leaves and stems, so when in doubt, wait — it survives drought far better than soggy soil. The base rhythm for string of pearls is when the soil is completely dry, every 2-3 weeks, but the real interval moves with the season, the light and the pot — so treat the figures below as a starting point and always confirm with the plant itself.

Spring & summer (active growth): Spring and summer: soak fully, then leave it alone until the soil is dry all the way down — usually around every 2-3 weeks.
Autumn (slowing down): Autumn: ease off as growth slows; stretch the gap noticeably longer than the summer rhythm.
Winter (rest / dormancy): Winter: water sparingly, roughly once a month or even less in a cool room. The thick leaves carry it through.

Water deeply and let the soil dry fully between drinks. Shrivelled pearls signal thirst; mushy pearls signal overwatering.

Want this turned into a live reminder that adjusts to your home and the weather? The Growli watering calculator takes your pot size, light and season and returns a starting interval for string of pearls in seconds.

How to tell string of pearls needs water

A calendar is the worst way to water string of pearls. Check the plant and the soil instead — for this species, look for these signals in order:

The lower or oldest leaves feel slightly soft or look a touch wrinkled.
The pot is noticeably light when lifted.
Soil is dry several centimetres down, not just at the surface.

The most reliable single check is the first one on that list. When two signals agree, water; when they disagree, wait a day and look again — under-watering string of pearls for a day is almost always safer than over-watering it.

Overwatering vs underwatering string of pearls

The two failure modes can look alike at a glance, so check the soil weight and wetness before you decide. For string of pearls specifically:

Signs you are overwatering

Leaves turn translucent, yellow, soft and mushy — classic overwatering.
Lower stem darkens or goes squishy at soil level.
Whole rosettes or sections drop at the lightest touch.

Signs you are underwatering

Leaves pucker, wrinkle or curl inward — a harmless thirst signal that reverses fast after a soak.
Older leaves dry crisp from the tips first.

Overwatering is the number-one killer of string of pearls. The thick leaves are a water tank — a slightly thirsty plant recovers in a day; a waterlogged one rots from the roots up.

Water quality notes

Tap water is generally fine for string of pearls; the soak-and-dry rhythm matters far more than water type.

Seasonal and environmental adjusters

Every figure above shifts with the conditions in your home. For string of pearls, the levers that matter most are:

A gritty, free-draining mix is essential — ordinary potting soil holds too much water for this plant.
Terracotta dries faster and is more forgiving than plastic or glazed ceramic.
More light and warmth speed drying, so the interval shortens in peak summer — always check, never assume.

Pot choice is part of this too — work out the right size with the pot size calculator, since a pot that is too big stays wet long enough to rot the roots of string of pearls.

String of pearls watering — frequently asked questions

How often should I water string of pearls?

Water string of pearls when the soil is completely dry, every 2-3 weeks. Spring and summer: soak fully, then leave it alone until the soil is dry all the way down — usually around every 2-3 weeks. Winter: water sparingly, roughly once a month or even less in a cool room. The thick leaves carry it through.

How do I know when string of pearls needs water?

The lower or oldest leaves feel slightly soft or look a touch wrinkled. The pot is noticeably light when lifted. Soil is dry several centimetres down, not just at the surface. The single most reliable test for string of pearls is the first signal on that list — checking the soil or the plant directly always beats watering by the calendar.

What does an overwatered string of pearls look like?

Leaves turn translucent, yellow, soft and mushy — classic overwatering. Lower stem darkens or goes squishy at soil level. Whole rosettes or sections drop at the lightest touch. Overwatering is the number-one killer of string of pearls. The thick leaves are a water tank — a slightly thirsty plant recovers in a day; a waterlogged one rots from the roots up.

What are the signs of an underwatered string of pearls?

Leaves pucker, wrinkle or curl inward — a harmless thirst signal that reverses fast after a soak. Older leaves dry crisp from the tips first.

Can I use tap water on string of pearls?