So you've taken your grow room's temperature, relative humidity and leaf temperature and calculated your VPD or vapor pressure deficit. Or perhaps you've checked a VPD chart and seen that your indoor garden's VPD is too high? Now what? This video is all about what a high VPD does to your plants and how you as a grower can respond.
Download VPD Spreadsheet: opennlabs.com/vpd/VPD_SPREADSHEET.xlsx
