The Variegated String of Pearls ( Senecio rowleyanus ‘Variegata’, now Curio rowleyanus ‘Variegata’) is a captivating succulent that adds unique charm to indoor spaces. Its distinguishing feature is small, bead-like leaves, marbled with green, creamy white, and sometimes pink. These spherical leaves cascade from trailing stems, making it ideal for hanging baskets or elevated displays.
Caring for Variegated String of Pearls
Light Needs
Variegated String of Pearls thrives in bright, indirect light. Placing it near a south or west-facing window is ideal, providing ample light without harsh direct sun. While it can tolerate some morning direct sunlight, intense midday sun can scorch its variegated leaves. Sufficient light is important for maintaining variegation, as lighter leaf areas have less chlorophyll and require energy.
Watering Practices
The “soak and dry” method is recommended: water thoroughly until it drains, then allow the soil to dry out completely before the next watering. Overwatering can lead to root rot and mushy pearls, while underwatering results in shriveled or wrinkled pearls. Younger pearls may need slightly more frequent watering, but always check soil moisture first.
Soil Requirements
Well-draining soil is important for Variegated String of Pearls to prevent waterlogging and root rot. A specialized cactus or succulent potting mix is recommended due to its good drainage. These mixes often contain components like perlite, pumice, or coarse sand for aeration and drainage. Using a pot with drainage holes is important to allow excess water to escape.
Temperature and Humidity
Variegated String of Pearls prefers warm, dry environments, with an optimal temperature range typically between 70-85°F (21-29°C). It is not frost-tolerant and should be protected from temperatures below 50°F (10°C). Average household humidity levels are generally sufficient, as high humidity can contribute to overly moist soil and potential fungal issues.
Fertilizing
Fertilizing is not a primary requirement for Variegated String of Pearls, due to low nutrient needs. During its active growing season in spring and summer, a diluted, balanced liquid fertilizer can be applied infrequently. Avoid over-fertilizing, which can cause stunted or leggy growth and harm the plant’s roots.
Propagating Variegated String of Pearls
Propagation is straightforward using stem cuttings. Select healthy stems and cut them into segments a few inches long, each with several pearls. Allow cut ends to dry and callus for a day or two to prevent rot.
You can propagate cuttings in either soil or water. For soil propagation, lay calloused cuttings on well-draining succulent soil, or gently press them in. Keep soil lightly moist until roots develop. For water propagation, place the cut stem end into a small container of water, ensuring only the stem is submerged, then transfer to soil once roots are visible.
Repotting Variegated String of Pearls
Variegated String of Pearls has a shallow root system, so it does not require frequent repotting. Repotting is necessary only when the plant becomes root-bound, indicated by roots growing from drainage holes, or when the soil needs refreshing. If repotting, choose a pot only one size larger than the current one, and ensure it has drainage holes. The best time to repot is during spring or early summer when the plant is actively growing.
Troubleshooting Common Issues
Losing Variegation
Loss of distinctive creamy or pink hues indicates insufficient light. Moving the plant to a brighter location with consistent, indirect light can restore and enhance variegation.
Shriveled or Mushy Pearls
Shriveled or wrinkled pearls indicate underwatering, as the plant stores water in its leaves. If the pearls are soft, mushy, or translucent, this signals overwatering or root rot. For shriveled pearls, thorough watering should plump them up. For mushy pearls, allow the soil to dry completely, and if signs of rot persist, inspect roots and repot into fresh, dry soil.
Leggy Growth
Leggy growth, characterized by elongated stems with sparse pearls, indicates insufficient light. The plant stretches towards light, resulting in a stretched, less compact appearance. Moving the plant to a brighter spot with indirect light will encourage compact, fuller new growth. Pruning leggy stems can also promote bushier growth.
Pests
While generally hardy, Variegated String of Pearls can be susceptible to common houseplant pests such as mealybugs or aphids. Regular inspection, especially of leaf undersides and stems, helps early detection. If found, pests can be removed with a cotton swab dipped in rubbing alcohol or by applying insecticidal soap or neem oil, following product instructions.