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Succulent VINE INDOOR Placement Primary: Ornamental

String of Pearls

Senecio rowleyanus

Identified By Marcs

The String of Pearls, scientifically known as Senecio rowleyanus, is a fascinating and highly popular trailing succulent native to the dry regions of southwest Africa. It is instantly recognizable by its unique, spherical leaves that resemble tiny green peas or beads strung along delicate, thread-like cascading stems. This growth habit makes it an exceptional choice for hanging baskets, high shelves, or macrame plant holders where its long tendrils can drape elegantly downward. As a succulent, it stores water efficiently within its spherical leaves, allowing the plant to withstand periods of drought. However, this adaptation also means it is highly sensitive to overwatering and root rot. Providing the right balance of bright, indirect light and well-draining soil is crucial for maintaining its vibrant appearance and preventing common health issues. With proper care, this charming plant can produce small, white, daisy-like flowers that emit a pleasant, cinnamon-like fragrance.

Also known as: String of Beads Pearl Plant Curio rowleyanus

Toxicity & Safety

Is String of Pearls toxic to pets?

Yes, toxic to pets.

The String of Pearls plant is considered toxic to cats, dogs, and other domestic animals according to the ASPCA. The plant contains pyrrolizidine alkaloids, which can cause severe adverse reactions if ingested by pets. Symptoms of poisoning in animals typically include vomiting, diarrhea, excessive drooling, lethargy, and a loss of appetite. If you suspect your pet has ingested any part of this trailing succulent, it is critical to contact a veterinarian immediately to ensure the animal receives appropriate medical care and supportive treatment.

Is String of Pearls toxic to humans?

Yes, toxic to humans.

Ingesting any part of the String of Pearls plant is toxic to humans. It contains harmful alkaloids that can lead to unpleasant and potentially dangerous medical symptoms if swallowed. Accidental consumption, particularly by curious children, can result in severe gastrointestinal irritation, nausea, vomiting, and diarrhea. Skin contact with the sap may also cause mild irritation or allergic reactions in sensitive individuals. It is strongly recommended to keep this plant completely out of reach of young children and pets, and to wear gloves when performing heavy pruning.

Is String of Pearls safe during pregnancy?

Caution advised during pregnancy.

Due to the toxic pyrrolizidine alkaloids present throughout the tissues of the String of Pearls plant, pregnant and breastfeeding individuals should exercise extreme caution. Ingestion of toxic plant parts can lead to systemic illness and potential complications that may adversely affect pregnancy. While casual contact or simply being in the same room as the plant does not pose a direct threat, accidental ingestion or handling broken stems without proper personal protective equipment should be strictly avoided to ensure the safety of both mother and child.

Growth & Dimensions

Height 10 - 90 cm
Width 30 - 120 cm
Growth Rate Moderate
Care Level Moderate
Lifespan Perennial

Ideal Environment

Temperature 10°C - 24°C
Sunlight Hours 6 - 8 hrs/day
Sun Exposure Partial shade
Soil pH 6 - 7.5
Watering Interval 10 - 21 days
Humidity 30.00% - 50.00%
USDA Zone 9a - 11b

Arid and Semi-Arid Climates

Climate: Thrives in warm, dry climates with low humidity and ample bright sunlight. Must be protected from freezing temperatures and heavy, prolonged rainfall.

Soils: Sandy Soil Rocky Soil Cactus Mix
Annual Rainfall: 100 - 500 mm

Native Regions

South Africa (ZA – Africa)
Namibia

How to Care for String of Pearls

How should I handle watering your string of pearls?

Allow the soil to dry out completely between watering sessions. When you do water, soak the soil thoroughly until excess water drains freely from the bottom of the pot. Never let the pot sit in standing water, as this will quickly cause the delicate root system to rot and destroy the plant.

How should I handle sunlight requirements?

Provide bright, indirect sunlight for several hours a day. An east or west-facing window is usually ideal. While they can tolerate some direct morning sun, harsh afternoon sun can easily scorch the delicate round leaves and damage the trailing stems.

How should I handle soil and fertilization?

Plant your String of Pearls in a fast-draining cactus and succulent potting mix, ideally amended with perlite or pumice to improve aeration. Feed sparingly with a diluted, balanced liquid fertilizer once during the active spring and summer growing season, and withhold fertilizer entirely during the dormant winter months.

How to Propagate String of Pearls

How to propagate String of Pearls by cutting?

Select a healthy trailing stem that is at least 10 to 15 centimeters long. Using clean, sharp scissors, snip the stem from the main plant. Remove the pearls from the bottom few centimeters of the cutting to expose bare nodes. Lay the cutting horizontally across the surface of a pot filled with fresh, moist succulent soil, gently pressing the nodes into the medium, or coil the stem on top of the soil. Keep the soil lightly damp until new roots and tiny shoots emerge from the nodes within a few weeks.

Common Diseases & Pests of String of Pearls

What is Root Rot and how is it treated?

Fungal
Symptoms:

The trailing stems become mushy, discolored, and translucent. The individual pearl leaves may turn brown, shrivel up, and easily detach from the stem at the slightest touch. The overall plant will rapidly decline and lose its vigor.

Treatment:

Remove the plant from its container, gently brush away soggy soil, and use sterilized scissors to cut away all infected and rotting roots and stems. Repot the healthy remaining cuttings into fresh, dry, well-draining succulent soil and adjust your watering habits moving forward.

Prevention:

Always use a pot with a functional drainage hole and a specialized succulent soil mix. Ensure the soil is completely dry before applying water again, and never allow the plant to sit in saucers filled with excess water.

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