Description
Dendrobium crumenatum, commonly known as the pigeon orchid, is a species of epiphytic orchid that thrives in warm, humid climates. The ‘Red Leaves’ variety is a unique form with reddish foliage, likely due to environmental stressors like high light intensity. Here’s how to care for it:
1. Light Requirements
- Prefers bright, indirect light or filtered sunlight.
- Too much direct sunlight may cause leaf scorching, but moderate sun exposure enhances the reddish leaf coloration.
- If growing indoors, place near an east or south-facing window.
2. Temperature & Humidity
- Ideal temperature: 18–32°C (65–90°F).
- Avoid prolonged exposure to temperatures below 10°C (50°F).
- Requires high humidity (50–80%); misting or using a humidity tray can help.
3. Watering
- Water regularly but allow the roots to dry between watering.
- In warm climates, water 2–3 times a week.
- Reduce watering during cooler months to prevent rot.
4. Potting & Medium
- Mounting on driftwood, cork bark, or tree fern slabs is ideal.
- If potted, use a well-draining mix (bark, charcoal, perlite).
- Avoid dense media that retains excessive moisture.
5. Fertilization
- Feed with a balanced orchid fertilizer (20-20-20 or similar) every 2 weeks during the growing season.
- Reduce feeding during dormancy.
6. Air Circulation
- Good airflow prevents fungal and bacterial infections.
- Avoid stagnant air, especially in high humidity conditions.
7. Flowering & Dormancy
- Dendrobium crumenatum produces fragrant white flowers that bloom after a sudden temperature drop or heavy rain.
- Blooms typically last a day or two, but plants can flower multiple times a year.
- Provide a slight dry period in winter to encourage blooming.
8. Pest & Disease Control
- Watch out for spider mites, scale insects, and mealybugs.
- Treat infestations with neem oil or insecticidal soap.
- Prevent fungal infections by ensuring good airflow and avoiding overwatering.
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