Oxalis ‘Plum Crazy’, a captivating cultivar of Oxalis spiralis vulcanicola, offers a striking aesthetic to any indoor plant collection. Its distinctive foliage showcases a blend of deep plum and rich burgundy hues, often variegated with splashes of pink, forming charming clover-like leaves. These unique leaves, paired with delicate pink or yellow flowers, create a visually appealing display that makes it a popular choice for plant enthusiasts.
Essential Care Requirements
Oxalis ‘Plum Crazy’ thrives in bright, indirect light conditions, which helps maintain its vibrant leaf coloration. While it can tolerate some direct morning sun, prolonged exposure to intense light can scorch its delicate foliage and cause the purple color to fade. Conversely, insufficient light may lead to leggy growth and reduced flowering. Positioning it near an east or west-facing window often provides the ideal balance.
Consistent moisture is important for this plant, but overwatering can lead to root rot. Allow the top inch (2.5 cm) of soil to dry out between waterings, then thoroughly saturate the potting mix until water drains from the bottom. Drooping leaves can signal water stress from either too little or too much water; check soil moisture before adjusting your schedule.
A well-draining, airy potting mix is important for the health of Oxalis ‘Plum Crazy’. A suitable blend often includes peat moss, perlite, and compost, ensuring proper drainage while retaining some moisture. Repotting may be necessary every one to two years, or when the plant outgrows its container. Always select a pot with adequate drainage holes to prevent waterlogging.
This plant prefers average room temperatures, ideally between 18°C and 24°C (65°F and 75°F). While it can tolerate slightly cooler conditions, temperatures below 10°C (50°F) should be avoided, as it is sensitive to cold drafts and extreme fluctuations. Average household humidity levels are sufficient, but the plant benefits from moderate to higher humidity.
During its active growing phase in spring and summer, Oxalis ‘Plum Crazy’ benefits from regular feeding. Use a balanced, water-soluble liquid fertilizer, applied once a month after diluting it to half the recommended strength. Apply fertilizer to damp soil to prevent root burn. Cease fertilization during the fall and winter months when the plant’s growth slows or enters dormancy.
Managing Dormancy
Oxalis ‘Plum Crazy’ plants naturally undergo dormancy. This rest phase is triggered by changes in light and temperature, often occurring in fall or winter. Signs of dormancy include yellowing and dying back of foliage, and leaves may shrivel and drop.
When your plant enters dormancy, significantly reduce watering, as its metabolic activity slows. Move the pot to a cooler, darker location where temperatures remain consistent, ideally between 13°C and 16°C (55°F and 60°F). The plant stores energy in its underground tubers to prepare for renewed growth.
To bring the plant out of dormancy in early spring, gradually reintroduce it to brighter light and begin increasing watering. As new shoots emerge, resume a regular watering schedule and begin fertilizing. This gradual transition helps the plant re-acclimate and encourages new growth.
Troubleshooting Common Problems
Oxalis ‘Plum Crazy’ can encounter common houseplant pests, such as spider mites and aphids. These insects can cause yellowing or distorted leaves and, if untreated, may weaken the plant. Regularly inspect the plant and, upon detection, treat it with an insecticidal soap or neem oil solution.
Fungal issues like botrytis blight or powdery mildew can arise with poor air circulation or excessive humidity. Botrytis blight is fuzzy gray mold, while powdery mildew is a white, powdery coating on leaves. Ensuring good airflow around the plant and avoiding overwatering helps prevent these diseases.
General health issues often stem from improper care. Yellowing leaves can indicate overwatering, nutrient deficiency, or natural aging. Wilting is a sign of either underwatering or, less commonly, root rot from excessive moisture. Observing the plant closely and adjusting light, water, or feeding as needed can resolve these concerns.