Portulaca molokiniensis is a distinct succulent plant. It features a woody stem with paddle-like, fleshy leaves, earning it common names like “Crater Plant” or “Elephant Bush of Hawaii.” This plant originates from the Hawaiian Islands, thriving in coastal, arid environments. Its unusual form and low-maintenance make it popular.
Essential Care Requirements
Portulaca molokiniensis requires bright, direct sunlight, at least six hours daily. Insufficient light causes etiolation, where stems become elongated and weak.
As a succulent, Portulaca molokiniensis is highly drought-tolerant. Use the “soak and dry” method: water thoroughly, then allow soil to dry completely before rewatering. Overwatering causes root rot, so ensure proper drainage. Reduce watering during cooler, dormant months.
A well-draining, gritty soil mix is essential. A suitable blend includes standard potting mix amended with inorganic materials like perlite, pumice, or coarse sand, often 50% to 70% of the volume. This promotes drainage and aeration, preventing waterlogging.
It thrives in warm conditions, ideally 65°F to 85°F (18°C to 29°C). It is sensitive to cold temperatures and frost, which can cause damage. The plant tolerates low humidity and does not require misting.
It is not a heavy feeder and benefits from minimal fertilization. Apply a balanced succulent or cactus fertilizer, diluted to half strength, once or twice during its active growing season (spring and summer). Avoid fertilization during dormancy (fall and winter) to prevent nutrient burn.
Propagating Molokiniensis
Propagation is achieved through stem cuttings. Select healthy, mature stems (3 to 6 inches long) and cut with a clean tool. Allow the cut end to callus for several days to a week in a dry location; this prevents rot.
Once callused, insert cuttings into a well-draining succulent potting mix. Maintain warmth and bright, indirect light, watering sparingly until roots establish (several weeks). The optimal time is during the active growing season (spring or early summer).
Common Problems and Solutions
Overwatering causes yellowing, translucent leaves and mushy stems, indicating root rot. Adjust watering, ensure drainage, or repot into drier soil. Underwatering causes shriveled leaves and slow growth, remedied by increasing watering using the soak and dry method.
Pest infestations (mealybugs or aphids) may appear as cottony masses or tiny insects. Treat with rubbing alcohol, insecticidal soap, or neem oil. Insufficient light results in leggy, stretched growth and pale foliage. Move the plant to more direct sunlight for healthier development.