Table of Contents
Repotting Mammillaria cacti can rejuvenate their growth and improve their health. Proper greenhouse care is essential to ensure these succulents thrive after repotting. This article outlines best practices for caring for repotted Mammillaria in a greenhouse setting.
Preparing for Repotting
Before repotting, select a suitable container that provides adequate drainage. Use a well-draining cactus or succulent mix, or create your own by combining potting soil with coarse sand or pumice. Ensure the new pot is slightly larger than the current one to accommodate growth.
Repotting Process
Handle Mammillaria with care to avoid damaging spines or roots. Gently remove the plant from its old pot, loosen any compacted roots, and trim away any rotten or damaged roots with sterilized scissors. Place the cactus in the new pot, filling around it with fresh soil, and press lightly to secure the plant.
Post-Repotting Care
After repotting, allow the plant to settle in a shaded area for a few days. Gradually introduce it to brighter light conditions to prevent sunburn. Maintain a consistent watering schedule—water only when the soil is completely dry to avoid overwatering, which can lead to root rot.
Greenhouse Environment Tips
Maintain a temperature range of 70-85°F (21-29°C) during the day and slightly cooler at night. Ensure good air circulation to prevent fungal diseases. Use shade cloths or curtains during the hottest part of the day to protect the plant from intense sunlight.
Monitoring and Maintenance
Regularly inspect your Mammillaria for signs of pests or disease. Look for discolored or soft spots, which may indicate overwatering or infection. Fertilize sparingly during the active growing season with a diluted cactus fertilizer. Keep the greenhouse clean and free of debris.
Common Issues and Solutions
- Overwatering: Ensure soil dries completely between watering sessions.
- Sunburn: Provide shade during the hottest part of the day.
- Pest infestation: Remove pests manually or treat with appropriate organic pesticides.
- Root rot: Improve drainage and avoid watering when soil is moist.
By following these best practices, your repotted Mammillaria will adapt well to its new environment and continue to grow healthily in your greenhouse.