The Senecio herreianus, commonly known as String of Pickles, is a unique trailing succulent, often called Ruby Necklace or String of Rubies due to its potential for vibrant coloration. Its small, plump, bead-like leaves resemble tiny pickles or watermelons, creating an ornamental display in hanging baskets or cascading over pots. Native to Namibia, this plant is well-adapted to arid conditions, storing water in its fleshy leaves, making it a low-maintenance houseplant.
Caring for Your String of Pickles
Light Requirements
String of Pickles plants thrive in bright, indirect light, and can even tolerate some direct sunlight, especially morning sun. For optimal growth and to encourage the leaves to develop a ruby-red hue, provide at least 4-6 hours of bright light daily. If natural light is insufficient, particularly during winter months, supplementing with a grow light can be beneficial. Too little light can cause the plant to become leggy, with stretched stems and greener leaves, while intense, scorching midday sun can lead to sunburn.
Watering Needs
As a succulent, the String of Pickles stores water in its leaves, making it drought-tolerant. Allow the soil to dry out completely between waterings to prevent overwatering and root rot. The “soak and dry” approach involves thoroughly watering until water drains from the bottom, then waiting until the top two inches of soil are dry before watering again. Watering frequency varies, typically every 2-3 weeks, depending on conditions and season, with less water needed in cooler months.
Ideal Soil Mix
A well-draining soil mix prevents waterlogging and root rot. A specialized cactus or succulent potting mix is ideal, as they provide drainage. If creating your own mix, ensure it is porous and allows water to pass through freely. The plant prefers a slightly acidic soil pH, ideally between 6.0 and 6.5.
Temperature and Humidity
String of Pickles plants prefer warm temperatures and do not tolerate cold well. The optimal temperature range for this plant is between 60 to 80 degrees Fahrenheit (15-27 degrees Celsius). Keep the plant away from drafts, cold windows, or heating sources to prevent sudden temperature fluctuations and leaf drop. Typical household humidity levels are generally suitable for this succulent, with 30-55% humidity being ideal.
Fertilizing
String of Pickles are not heavy feeders and do not require frequent fertilization. Fertilize sparingly during its active growing season (spring and summer), about once every few weeks or a couple of times per season. Use a diluted liquid succulent fertilizer, often at half strength, and select a low-nitrogen formula to avoid burning roots. Avoid fertilizing during fall and winter when growth slows.
Propagating String of Pickles
Propagating String of Pickles is straightforward using stem cuttings. Take a stem cutting 4-6 inches long, ensuring it has at least 2-3 nodes. After cutting, allow the end to “callus over” for one to two days; this prevents rot when planted. Once callused, place the cutting directly onto well-draining succulent soil, with nodes making contact. Alternatively, root cuttings in water by submerging bottom nodes, changing water weekly until roots develop, then transfer to soil.
Troubleshooting Common String of Pickles Problems
String of Pickles can experience common issues, often related to improper care. If the leaves appear shriveled or wrinkled, it indicates underwatering or low humidity. Conversely, mushy or rotting stems and leaves are a strong indicator of overwatering, leading to root rot. Leggy growth, characterized by stretched-out stems with sparse leaves, signals insufficient light, as it reaches for more light. Pest issues like mealybugs or scale can also occur. Regular inspection helps early detection and treatment with insecticidal soap or neem oil.