The pearl succulent is one of the most charming succulents you can grow. Its trailing stems are lined with round, bead-like leaves that store water, giving it the look of a string of green pearls. Whether you call it a pearl succulent, string of pearls succulent, or Senecio rowleyanus, this plant brings a soft, sculptural beauty to windowsills, shelves, and hanging planters.
What Is a Pearl Succulent?
The pearl succulent is Senecio rowleyanus, a trailing succulent native to the dry regions of southwest Africa. In its natural habitat, it grows along the ground in rocky, sun-baked areas. Its round leaves are an adaptation to that dry climate. A sphere loses less water than a flat leaf, so each pearl acts as a tiny water tank that helps the plant survive long dry spells. Each pearl has a small translucent stripe, often called a window, that lets sunlight reach the inner tissue of the leaf. Indoors, its stems can reach two to three feet long, and it looks best in hanging baskets, tall pots, or on high shelves where the strands can cascade freely.
Pearl Succulent vs Other Succulents
If you already grow echeveria, jade plants, or burro’s tail, the pearl succulent will feel familiar, but it has a few differences worth knowing. Most rosette succulents grow upward and outward from a central point. The pearl succulent grows outward and downward, sending out long trailing stems. Its leaves are round rather than flat or pointed, which makes it look more delicate than it actually is. Like other succulents, it stores water in its leaves and prefers dry soil between waterings. Unlike many desert succulents, it prefers bright indirect light rather than harsh, direct sun all day. It also prefers slightly more frequent watering than a cactus, but still far less than a leafy houseplant. Related plants include string of tears, string of bananas, and string of hearts.
Light and Watering
Light is the most important factor in pearl succulent care. This plant needs bright light to stay compact and full. A bright east-facing window is ideal. A south-facing window works well too, as long as the plant is set back a foot or two from the glass or shielded from the strongest midday sun, which can scorch the pearls. The key detail many growers miss is that light must reach the top of the plant. If you hang a pearl succulent high on a wall where the crown sits in shadow, the top will thin out even if the trailing strands get light. Signs of too little light include stretched stems with wide gaps between pearls, small pale pearls, and slow growth. Water a pearl succulent just like any succulent: soak, then let it dry out completely. Water thoroughly until it drains from the bottom, then wait until the soil is fully dry before watering again. In spring and summer, that usually means every two to three weeks. In fall and winter, once a month or even less is plenty. Overwatering is the most common killer of pearl succulents, leading to mushy pearls, yellow stems, and root rot. Always empty the saucer after watering.
Soil, Pot, Temperature, and Feeding
As a succulent, the pearl succulent needs fast-draining soil. Regular potting mix holds too much moisture and stays wet for too long. Use a cactus or succulent mix, and improve it with extra drainage material. A reliable mix is two parts cactus soil, one part perlite or pumice, and one part coarse sand or fine bark. Choose a pot with a drainage hole. Shallow, wide pots suit this plant well because its roots are shallow and its stems like to root along the soil surface. Terracotta pots are an excellent choice because the porous clay helps soil dry faster. Pearl succulents prefer average indoor temperatures between 65 and 80 degrees Fahrenheit (18 to 27 degrees Celsius). Feed lightly during the growing season: once a month in spring and summer, use a succulent fertilizer diluted to half strength.
Styling, Propagation, and Troubleshooting
The pearl succulent is as much a decor piece as a plant. Its trailing habit makes it a natural fit for hanging planters, where the strands can fall freely and catch the light. On shelves, place the pot on a high shelf and let the strands trail down past books and objects below. In a succulent garden, plant the pearl succulent at the edge of a shallow dish so its strands spill over the side, surrounded by rosette succulents such as echeveria for contrast. Propagation is easy and is the best way to fill in a thin plant or share cuttings with friends. To propagate in soil, lay a four to six inch cutting on moist succulent soil so several pearls touch the soil. Roots form within two to three weeks. To fill in a thin plant without cutting anything, lay long strands back across the soil surface in the same pot. The nodes will root where they touch the soil. Mushy pearls mean overwatering: let the soil dry out and check drainage. A thin crown usually means the top needs more light.
Frequently Asked Questions
Is a pearl succulent the same as string of pearls?
Yes. Pearl succulent and string of pearls are two common names for the same plant, Senecio rowleyanus.
How often should I water a pearl succulent?
Water only when the soil is completely dry, usually every two to three weeks in spring and summer and once a month or less in winter.
Can a pearl succulent grow outdoors?
In warm climates with mild winters, it can grow outdoors in a sheltered spot with bright, indirect light.
Why is my pearl succulent losing pearls?
Pearls drop when the plant is stressed, usually from overwatering, underwatering, or sudden light changes.
Is the pearl succulent safe for pets?
No, it is mildly toxic if eaten. Keep it on a high shelf or in a hanging planter.
Final Thoughts
The pearl succulent is proof that succulents can be soft, elegant, and dramatic all at once. Treat it like the succulent it is, with bright light, fast-draining soil, and careful watering, and it will reward you with long, trailing strands of green pearls that get more beautiful every year.