Planting Phalaenopsis in Winter Note Five Aspects

The ideal temperature for the growth of Phalaenopsis orchids is between 25°C and 30°C during the day, with nighttime temperatures ranging from 18°C to 20°C. It’s important to ensure that night temperatures don’t drop below 15°C, as this can negatively affect the plant’s health. If kept at a slightly higher temperature, especially during flowering, it can actually promote better blooming. Humidity plays a crucial role in the development of Phalaenopsis. These orchids thrive in high humidity, ideally between 70% and 80%. To maintain this, misting the surrounding area regularly is recommended. However, the substrate should not be overly wet, as excessive moisture can lead to root rot. A slightly dry medium encourages new root growth and helps keep the roots healthy. Light is another essential factor. Phalaenopsis orchids require bright, indirect light. During sunny days, use a shade net to protect them from direct sunlight, which can cause leaf burn. When temperatures rise or humidity becomes too high, opening the greenhouse vents improves air circulation and prevents fungal issues. Fertilization should follow the "little and often" principle. A diluted solution of compound fertilizer (1,500 times) mixed with boric acid (5,000 times) can be applied every two weeks. Since Phalaenopsis has fleshy roots, they benefit from regular potassium applications, which help strengthen the root system and support overall growth. To prevent pests and diseases, it's important to maintain a clean growing environment. Before introducing seedlings into the greenhouse, disinfect the space thoroughly. Regularly spray fungicides—once a week is generally sufficient. It's best to apply these treatments on sunny days to ensure proper absorption and effectiveness. By following these care guidelines, you can create an optimal environment for your Phalaenopsis orchids, ensuring strong growth, healthy roots, and beautiful blooms throughout the year.

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