Care Sheet: Begonia rex 'Cream' in Closed Terrariums
 
Begonia rex 'Cream' is a charming cultivar celebrated for its cream-colored leaves intricately patterned with green, pink, and silver hues. Cultivating this variety in a closed terrarium provides an ideal environment for its growth and beauty. Here's a specialized care sheet for Begonia rex 'Cream' in closed terrariums:
 
1. Terrarium Setup:
Select a glass terrarium with a lid to create a controlled environment with high humidity, which Begonia rex 'Cream' thrives in.
Ensure the terrarium has proper ventilation to prevent excess moisture buildup and maintain air circulation.
 
2. Substrate:
Use a well-draining, nutrient-rich substrate suitable for terrarium plants. A mix of peat moss, coconut coir, and perlite works well.
Provide a layer of drainage material, like gravel or activated charcoal, at the bottom to prevent waterlogging.
 
3. Lighting:
Begonia rex 'Cream' requires bright, indirect light. Place the closed terrarium in a location with filtered sunlight or use artificial grow lights.
Avoid exposing the terrarium to direct sunlight, as it can cause leaf burn.
 
4. Temperature and Humidity:
Maintain a consistent temperature between 65-75°F (18-24°C) within the closed terrarium.
Ensure high humidity levels of 50-80% by misting the terrarium regularly or using a humidity tray.
Monitor the terrarium's temperature and humidity levels with a thermometer and hygrometer.
 
5. Watering:
Water Begonia rex 'Cream' sparingly, keeping the soil lightly moist but not waterlogged.
Allow the top inch of the soil to dry out between waterings to prevent overwatering and root rot.
Use room temperature water to avoid shocking the plant.
 
6. Fertilization:
Feed Begonia rex 'Cream' with a diluted, balanced liquid fertilizer every 4-6 weeks during the growing season (spring to early fall).
Use a fertilizer specifically formulated for terrarium plants, and apply it at half the recommended strength to avoid nutrient buildup.
 
7. Pruning and Grooming:
Trim any yellowing or damaged leaves as needed to maintain the plant's health and appearance.
Pinch back leggy growth to encourage a bushier habit and remove any dead or decaying plant material promptly.
 
8. Pest and Disease Control:
Monitor Begonia rex 'Cream' regularly for signs of pests, such as aphids or spider mites, and diseases like powdery mildew.
Treat any pest infestations promptly with insecticidal soap or neem oil, and ensure good air circulation within the closed terrarium to prevent fungal issues.
 
9. Monitoring and Maintenance:
Regularly inspect the Begonia rex 'Cream' and the closed terrarium for signs of stress, pests, or disease.
Adjust care practices as needed based on the plant's response and environmental conditions.
 
By following these care guidelines tailored for closed terrariums, you can create an optimal environment for Begonia rex 'Cream' to thrive, showcasing its exquisite foliage and enhancing the beauty of your indoor space.