Caring for the Purple African Milk Tree (Euphorbia trigona 'Purple') is similar to caring for other varieties of the African Milk Tree, with the added benefit of its vibrant purple stems, which are most pronounced when the plant is grown in ideal conditions. Here are key care tips to keep your Purple African Milk Tree healthy and thriving:
Caring for the Purple African Milk Tree (Euphorbia trigona 'Purple') is similar to caring for other varieties of the African Milk Tree, with the added benefit of its vibrant purple stems, which are most pronounced when the plant is grown in ideal conditions. Here are key care tips to keep your Purple African Milk Tree healthy and thriving:
1. Light
- Bright, Indirect Light: The Purple African Milk Tree requires bright, indirect light to thrive and maintain its striking purple color. It can tolerate some direct sunlight, but too much can cause sunburn or scorch the stems. To encourage the best color, place the plant near a bright window where it can receive plenty of light.
- Too Little Light: If the plant doesn't get enough light, it may become leggy and lose its purple hue, turning back to a more muted green.
2. Watering
- Infrequent Watering: Like other succulents, the Purple African Milk Tree is drought-tolerant and prefers to dry out between waterings. Water the plant thoroughly, then let the soil dry completely before watering again. Overwatering is the most common cause of issues like root rot, so be sure the soil is dry to the touch before watering.
- During Winter: Reduce watering in the cooler months, as the plant enters a period of dormancy.
3. Soil
- Well-Draining Soil: Use well-draining cactus or succulent mix for the Purple African Milk Tree to prevent water from accumulating around the roots. If you don’t have a cactus mix, you can add sand or perlite to regular potting soil to improve drainage.
4. Temperature
- Warm, Stable Temperatures: The Purple African Milk Tree prefers warm temperatures between 65°F and 75°F (18°C–24°C). It should be kept in a warm, stable environment and away from cold drafts, as it is not frost-tolerant and can suffer in temperatures below 50°F (10°C).
- Avoid Extreme Heat: While it enjoys warmth, it’s important to avoid placing the plant in areas where it can be exposed to extreme heat from direct sunlight, which can cause damage to the stems.
5. Fertilization
- Feed During Growing Season: During the growing months (spring and summer), feed the plant with a balanced, diluted fertilizer once a month. A fertilizer designed for cacti or succulents works well.
- Avoid Fertilizing in Winter: The plant typically goes into dormancy in fall and winter, so reduce or stop fertilization during these months.
6. Pruning
- Prune Carefully: If the plant becomes too tall or leggy, you can prune it back to maintain its shape. However, be very cautious when handling it, as the plant produces milky, toxic sap when cut. Always wear gloves and protective gear when pruning or handling the plant, and wash your hands afterward.
- Re-potting: If the plant becomes root-bound, repot it into a slightly larger container every 1-2 years.
7. Pests and Problems
- Pest Resistance: The Purple African Milk Tree is generally pest-resistant, but it may occasionally be affected by mealybugs or spider mites. Inspect the plant regularly for pests, especially on the undersides of leaves and stems.
- Signs of Stress: If the plant's stems turn yellow, drop leaves, or show signs of rot, it is likely due to overwatering or poor drainage.
