The Ultimate Vapor Pressure Deficit (VPD) Guide

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By: Peter Koverda
Co-founder, Pulse Labs
Last Updated 10/27/2018

"Why devote an entire guide to VPD?" you might ask. The answer is that the vapor pressure deficit (VPD) is extremely important for growing plants.

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.

If you master VPD, you master your environment, and become better grower.

VPD Chart Maker and Calculator

VPD Chart Maker and Calculator

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Get serious about VPD.