Watering schedule

How often to water String of Pearls (Senecio rowleyanus) — the schedule

Also called String of Pearls, String of Beads, Bead Plant.

More about string of pearls

Watering at a glance

Base rhythm	Every 2–3 weeks in spring and summer; every 4–6 weeks in autumn and winter
Spring / summer	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	Autumn: ease off as growth slows; stretch the gap noticeably longer than the summer rhythm.
Winter	Winter: water sparingly, roughly once a month or even less in a cool room. The thick leaves carry it through.
Light	Bright indirect light (just back from a sunny window)

About String of Pearls

Senecio rowleyanus · also called String of Pearls, String of Beads · houseplant

Senecio rowleyanus is a South African succulent producing long, trailing stems strung with perfect spherical leaves — each 'pearl' is a modified, water-storing leaf with a translucent 'window' that channels light. Stunning in hanging baskets, it needs bright indirect light, very infrequent watering, and sharp drainage. Highly toxic to pets — keep well out of reach of cats and dogs.

Ideal humidity: 30–50%

Watch for — Shrivelled pearls and root rot: Counterintuitively, shrivelled pearls are most often caused by overwatering leading to root rot, not underwatering. Check roots — healthy ones are white; brown, mushy roots indicate rot. Cut off damaged roots, let dry, and replant in fresh gritty compost.

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 every 2–3 weeks in spring and summer; every 4–6 weeks in autumn and winter, 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.

Allow the top half of the soil to dry out before watering. Overwatering is the most common cause of death — shrivelled pearls are more often a sign of overwatering (root rot) than underwatering. Water at the base, not on the pearls.

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 every 2–3 weeks in spring and summer; every 4–6 weeks in autumn and winter. 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?