Crassula multicava ‘Red’, also known as Fairy Crassula or Red Crassula, is a resilient succulent. This mat-forming plant features rounded, glossy leaves that develop striking red hues, making it a popular choice for indoor and outdoor settings. It is suitable for gardeners of all experience levels.
Achieving Vibrant Red Coloration
The distinctive red coloration in Crassula multicava ‘Red’ results from environmental factors that trigger anthocyanin production. Increased light exposure, especially direct sunlight, is a primary catalyst for this transformation. While the plant thrives in partial shade, more intense light enhances deeper red tones on the leaves.
Cooler temperatures also enhance red pigmentation. Exposure to cooler, non-freezing conditions encourages color intensification. Controlled water stress further contributes; allowing the soil to dry out thoroughly between waterings prompts leaves to deepen in color.
Crassula multicava Red Care Guide
Light Requirements
Crassula multicava ‘Red’ thrives in bright, indirect light, supporting healthy growth. While it tolerates partial shade, insufficient light causes leggy growth with elongated stems and pale leaves. Outdoors, morning sun and afternoon shade are ideal to prevent scorching from intense midday sun. Indoors, place the plant in a window receiving at least six hours of bright, indirect light.
Watering Practices
Water Crassula multicava ‘Red’ using the “soak and dry” method to prevent root rot. Water thoroughly until it drains from the pot, then allow the soil to dry completely before rewatering. During its active growing season (winter), it may need more frequent watering, but always ensure the soil is dry. Reduce watering significantly during the summer dormant period.
Soil and Potting
Well-draining soil is essential for Crassula multicava ‘Red’. Use a commercial succulent or cactus mix, or create your own by adding mineral grit like coarse sand, pumice, or perlite to potting soil. The container must have drainage holes. Terracotta pots are recommended as their porous nature helps the soil dry out quickly.
Temperature and Humidity
Crassula multicava ‘Red’ prefers average indoor temperatures. While it tolerates short-term fluctuations, prolonged exposure below 50°F (10°C) causes stress and leaf loss. This succulent is not cold hardy and may need protection or to be brought indoors in colder regions. It prefers low to moderate humidity.
Fertilizing
Crassula multicava ‘Red’ requires minimal fertilization. If fertilizing, apply a balanced, diluted liquid fertilizer (half or quarter strength) once a month during its active growing season (winter to mid-spring). Avoid fertilizing during the summer dormant period or when the plant is stressed, as this can cause root burn or salt buildup. Ensure the soil is moist before fertilizing.
Propagating Crassula multicava Red
Propagating Crassula multicava ‘Red’ is straightforward. Stem cuttings are an effective method. Select a healthy stem and make a clean cut. Allow the cut end to dry and form a callous for a few days to a week to prevent rot. Once callused, plant the cutting in well-draining succulent soil and provide bright, indirect light.
Leaf cuttings are also a viable propagation route. Gently twist a healthy leaf from the main plant. Allow the leaf to callous for 3 to 7 days in indirect sunlight. After callusing, place the leaf cutting on the surface of well-draining succulent or cactus mix. Mist the soil surface every few days until roots and new growth appear.
Troubleshooting Common Issues
Common issues affecting Crassula multicava ‘Red’ are easily remedied. Leggy growth, characterized by elongated stems and pale leaves, indicates insufficient light. Move the plant to a brighter location with more indirect sunlight to encourage denser growth.
Overwatering frequently causes mushy stems and root rot. Signs include yellowing leaves, wilting, or a foul odor. If root rot is suspected, unpot the plant, trim affected roots, and repot in fresh, dry, well-draining soil. Allow the soil to dry completely between waterings for recovery.
Common pests include mealybugs, aphids, and spider mites. Mealybugs are white, cottony masses; aphids are tiny soft-bodied insects; spider mites create fine webbing. Isolate infested plants and treat with insecticidal soap or rubbing alcohol.