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Plant Information Sheet

String of Pearls

Curio rowleyanus · formerly Senecio rowleyanus

Trailing String of Pearls stems with spherical leaves
Foliage and growth form. Photograph: Leonora Enking from West Sussex, England, Wikimedia Commons, CC BY-SA 2.0.
Plant typeTrailing succulent
LightBright filtered light
WaterDry substantially between waterings
EdibilityNot edible; toxic if eaten
U.S. nativeNo
Native to LafayetteNo
InvasiveNot persistent outdoors in Indiana
Self-seedingRare indoors

Identification and care

Slender trailing stems carry nearly spherical leaves with a translucent window. Give bright filtered light with gentle morning sun. Water only after the mix has dried substantially, then drain completely. Avoid wetting the crown repeatedly.

Standard soil mix

Use two parts coarse mineral aggregate, one part potting mix, and one part fine bark or coarse sand. A shallow container with an open drainage hole suits the small root system.

Flowering and propagation

Small white flowers on String of Pearls
Flowers. Photograph: Leonora Enking from West Sussex, England, Wikimedia Commons, CC BY-SA 2.0.

Small white flowers may appear under favorable seasonal conditions. Lay stem cuttings across slightly moist, gritty mix so several nodes contact the surface.

Environment and native habitat

Succulent Karoo landscape in South Africa
Regional Succulent Karoo context—not a documented exact locality. Photograph: Julie Anne Workman, Wikimedia Commons, CC BY-SA 3.0.
Quartz-covered Knersvlakte dryland landscape
Southern African dryland context—not the species' documented microsite. Photograph: Derek Keats, Wikimedia Commons, CC BY-SA 4.0.

Round leaves reduce exposed surface while storing water; narrow leaf windows admit light. These adaptations point to bright conditions, lean soil, and alternating moisture and dryness.

Sources

Related Information Sheets

Climate Information Sheet

Climate lessons for String of Pearls

Climate sets the limits for water use, seasonal growth, and outdoor survival.

Lafayette translation

A mild, seasonally dry climate does not prepare the plant for Indiana frost. Keep it frost-free and lengthen drying intervals when indoor winter light is low.

Care principle

Reproduce the function of the native setting rather than copying a watering calendar. Check light, temperature, root-zone air, drainage, and the plant’s current growth before acting.

Source

Ecology Information Sheet

How String of Pearls works in its habitat

Its form and life cycle reflect relationships with water, light, substrate, and animals.

Ecological relationships

Each rounded leaf stores water while presenting relatively little outer area for its volume. A narrow translucent band allows light to reach photosynthetic tissue inside the leaf. Where trailing stems meet suitable ground, nodes may form roots and extend the plant locally.

Care principle

Reproduce the function of the native setting rather than copying a watering calendar. Check light, temperature, root-zone air, drainage, and the plant’s current growth before acting.

Sources

Environmental Information Sheet

Native environment of String of Pearls

Curio rowleyanus comes from southern Africa and grows primarily in seasonally dry ground beneath partial shelter.

What this means in cultivation

Trailing stems move across shallow ground while rounded leaves store water. Bright filtered light, shallow airy soil, and rapid drainage reproduce the useful structural conditions.

Care principle

Reproduce the function of the native setting rather than copying a watering calendar. Check light, temperature, root-zone air, drainage, and the plant’s current growth before acting.

Source