LIGHT
Light should be given at higher levels to flower more robustly; however, Habenaria are fairly adaptable to light levels. Habenaria medusa requires greater light than the other listed species to grow vigorously. No light is required while plants are dormant; they may be stored in a completely dark location.
- In a greenhouse, part sun or about 21,500-53,800 lumens (2,000-5,000 foot-candles) is ideal. Southern climates below the 37th parallel will need to use shade cloth. Northern growers can expose some species to part-sun with no consequence.
- In the home, South, East, or West windows where they will get about 4 plus hours of direct sun are ideal. You cannot sunburn Habenaria indoors.
- If using artificial lights, they should be on for 12 to 16 hours a day.