Crassula lactea, often known as Milky Crassula or Milky Jade, is a captivating succulent that brings unique appeal to any plant collection. Its distinctive appearance and relatively straightforward care make it a popular choice for both new and experienced plant enthusiasts. This South African native thrives indoors with minimal fuss, making it an excellent addition to a sunny windowsill or a bright living space.
Identifying Crassula Lactea
Crassula lactea, a low-growing, trailing succulent, features broad, flat, triangular, emerald-green leaves. Its distinguishing characteristic is a row of small white dots along the margins of both leaf surfaces. As the plant matures, its branching stems can reach 9 to 12 inches long, often spilling from containers. In winter, it produces clusters of small, star-shaped white flowers on stalks up to 4 inches above the foliage. These flowers can last for several weeks.
Crassula Lactea Care
Caring for Crassula lactea requires specific conditions for light, water, and soil. Proper temperature, humidity, and occasional fertilization also support its growth.
Light
Crassula lactea thrives in bright, indirect sunlight, needing up to six hours of sun exposure daily indoors. It tolerates some direct morning or late afternoon sun, but intense direct sunlight can cause leaf scorching. Insufficient light leads to a leggy, weak plant that may struggle to bloom. Outdoors, a spot with morning sun and afternoon shade is best.
Watering
Correct watering is crucial for Crassula lactea, as overwatering often causes issues. Use the “soak and dry” method: water thoroughly until it drains, then allow the soil to dry completely before watering again. During cooler winter months, reduce watering frequency as the plant enters a semi-dormant period, preventing root rot. Too little water can cause leaves to shrivel, but they plump up once watering resumes.
Soil
Crassula lactea requires a well-draining soil mix to prevent waterlogging and root rot. A commercial succulent or cactus potting mix works well, promoting good aeration and allowing excess water to drain freely. Using a pot with drainage holes is also important for proper soil conditions.
Temperature and Humidity
Crassula lactea thrives in warm temperatures, ideally 64-77°F (18-25°C) during active growth. It tolerates cooler night temperatures, down to 50°F (10°C). Protect the plant from frost and prolonged cold below 50°F, as this can cause damage. Crassula lactea adapts to average household humidity and prefers drier air.
Fertilization
Fertilize Crassula lactea lightly and infrequently. During the active growing season (spring and summer), apply a balanced succulent fertilizer diluted to half strength once a month. Fertilizers formulated for cacti and succulents are suitable. While not strictly necessary, fertilizing can encourage faster growth in mature plants. Avoid fertilizing during the plant’s dormant period in fall and winter.
Propagating Crassula Lactea
Propagating Crassula lactea is straightforward, done through stem or leaf cuttings. The best time for propagation is during the plant’s active growing season in spring and summer.
Stem Cuttings
Select a healthy stem a few inches long and make a clean cut below a leaf node. Allow the cutting to dry and “callus” for several days in a dry, shaded area to prevent rot. Once callused, insert the cut end into well-draining succulent or cactus soil. Water sparingly, keeping the soil lightly moist until roots develop.
Leaf Cuttings
Gently twist a healthy leaf from the mother plant. Allow the leaf to callous for several days before placing it on top of well-draining succulent soil. Keep the soil lightly moist, allowing it to dry between applications. Roots and a new plantlet will emerge from the callused end.
Common Issues and Solutions
Crassula lactea can encounter common problems, primarily related to improper watering and occasional pests. Understanding these issues and their solutions helps maintain plant health.
Watering Issues
Overwatering is a frequent issue, leading to soft, yellowing, or mushy leaves and root rot. If root rot is suspected, remove the plant, trim any rotted roots, and allow the soil to dry completely. Allowing the soil to dry completely between waterings and ensuring proper drainage helps prevent this condition. Underwatering can cause leaves to shrivel; increasing watering frequency will rehydrate the plant.
Pests
Crassula lactea can be affected by pests like mealybugs (small, white, cotton-like masses), spider mites (fine webbing, yellow/white speckles), and aphids (sticky residue on new growth). Regular inspection aids early detection. Small infestations can be treated with rubbing alcohol on a cotton swab or insecticidal soap. Good air circulation also helps deter pests.