Thailand legalized medical marijuana in 2019. In the same year, marijuana became the most commonly reported illegal drug.

Why should indoor cannabis growers understand vapor pressure deficit? Because vapor pressure deficit (VPD) affects whether your plants can breathe, grow, and thrive!

The late vegetative stage of cannabis is the final growth phase before the plant transitions into flowering. It’s one of the most critical times for shaping, training, and preparing the plant for maximum yield and health.