Getting it to bloom

Why won't my String of pearls bloom? (and how to make it flower)

Also called string of beads, rosary plant (Curio rowleyanus (formerly Senecio rowleyanus)).

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.

Plant type: houseplant

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

The reasons string of pearls isn't blooming

Almost every non-blooming string of pearls traces back to one of these, roughly in order of how common they are:

It is kept warm and watered all year, so it never gets the cool, dry "stop" signal that flowering depends on.
Not enough light — these are usually high-light bloomers, and a dim spot gives leaves but never flowers.
It is fed too much, especially with nitrogen, pushing soft growth instead of flowers.
The plant is too young or was recently disturbed — many need a few years and an undisturbed root system to bloom.
Watering resumes too early or too heavily after the rest, breaking the cycle.

Treating string of pearls the same all year. Without the cool, dry winter rest it grows happily but simply never sets buds.

The fix — how to get string of pearls to flower

Give a real cool, dry rest. From late autumn, keep string of pearls cool (around 10 °C / 50 °F) and nearly dry for 6-10 weeks — a bright, cool room or porch is ideal.
Maximise light. Give it the brightest position you can the rest of the year; insufficient light is the most common reason it stays leafy and flowerless.
Restart gently in spring. When growth or a bud appears, slowly resume watering and move it somewhere warmer and bright — do not flood it straight away.
Feed lightly and leave it alone. Use a balanced or low-nitrogen feed only in active growth, and avoid rich feeding that pushes leaves over flowers.

Light and feeding do most of the heavy lifting here. Dial in the spot with the light guide for string of pearls and get the feeding right with the string of pearls fertilising schedule — the wrong feed (too much nitrogen) is one of the most common silent reasons a healthy plant makes leaves instead of flowers.

Bloom season and what to expect

Given a proper winter rest, String of pearls flowers in spring or summer once warmth and water return, often briefly but reliably year after year.

Post-bloom care so it flowers again

After flowering, return string of pearls to its normal growing routine for the summer, then repeat the cool, dry winter rest each year to keep it blooming.

For everything else this plant needs day to day, see the full string of pearls care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

String of pearls blooming — frequently asked questions

Why won't my string of pearls flower?

String of pearls needs a cool, dry winter rest to flower: a distinct cool, low-water period that signals the plant to switch from growing to blooming. The most common reason it is not happening: It is kept warm and watered all year, so it never gets the cool, dry "stop" signal that flowering depends on.

How do I make string of pearls bloom?

From late autumn, keep string of pearls cool (around 10 °C / 50 °F) and nearly dry for 6-10 weeks — a bright, cool room or porch is ideal. Give it the brightest position you can the rest of the year; insufficient light is the most common reason it stays leafy and flowerless.

When does string of pearls normally bloom?