Vapor pressure deficit (VPD) is extremely important for growing plants. This chart will help you ensure you grow is maintaining a great VPD level.
VPD helps you identify the correct range of temperature and humidity to aim for in your grow space. With VPD you can achieve the best results while avoiding pest and environmental problems. VPD also controls plant transpiration rates, stomata opening, CO2 uptake, nutrient uptake, and plant stress.
For more info on VPD, check out our VPD guide that includes an overview of the importance of VPD and free digital versions of our chart & calculator: pulsegrow.com/vpd
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