What is the best humidity level for most indoor gardens?
Most indoor gardens will thrive with humidity levels between 40 and 60 percent. Why is it important to vent a grow room or greenhouse? Without adequate ventilation, the temperature and/or humidity can rise to an unfavorable level and growth rates can be adversely affected. Indoors, after temperatures surpass about 90 degrees F, plant growth can actually shut down. Moving stale air out, while introducing fresh air, will result in healthier, more productive gardens.
