Does the wall require direct Sunlight?
A. No, but direct sunlight is preferred. The plants are growing hydroponically with air being drawn across their root mass. The plants compensate for this stressful environment by seeking plentiful light. At a minimum, the wall requires 12 hours of light. We prefer natural light, but if not provided through skylights and windows, supplemental light can be provided with appropriate fixtures and scheduled routines for flooding the plants regularly.