Successful cultivation of Maxillaria nigrescens. Here are some important cultural tips to ensure its thriving growth:

• Light: prefers bright, indirect light. Avoid direct sunlight, which can scorch the leaves.
• Temperature: This orchid enjoys cool to cold temperatures. Daytime temperatures should be between 15-25°C (59-77°F), and nighttime between 10-15°C (50-59°F).
• Humidity: thrives in high humidity, around 60-80%. You can achieve this by using humidifiers, misting frequently, or growing it in a humid environment.
• Watering: Water regularly, allowing the potting mix to dry slightly between waterings. Ensure proper drainage.

Additional Notes:

• It is an epiphytic orchid, meaning it naturally grows on trees.
  
• It grows in high altitude rainforests at elevations of 1500 to 2700 meters.
  
• The flowers are scented.