It's important to think about both humidity and temperature. Vapor Pressure Deficit (VPD) charts usually show recommended temperatures and relative humidity (RH) for the life stage of cannabis plants. Generally, flowering plants do well with lower RH. One reason for lower RH is avoidance of mold in the buds. Another reason is transpiration increases when humidity is low, and that brings more moisture and nutrients to the upper part of the plant, especially the buds.
Not sure how everyone else approaches this bur I normally start into flower at about 60 and as time goes on slowly bringing it down to about 40. Just what I do anyway.
What kind of setup do you have to get to those kind of tolerances. How are you maintaining your temp primarily? What make and model of dehumidifier are you using? I would love to have that kind of control...
I’ll get the model number when I go back up there, but it’s a digital model . The settings on it aren’t dead nuts but I use a monitor to get the true readings and adjust accordingly. Then, there’s a 18,000 btu ac, humidifier, and small heater for cold times. Once you get everything in sync, it’s stupid simple on atmospheric conditions. A homemade carbon filter mounted inside barrel takes the hot air from the ac discharge and scrubs the smells from it, then vents outside. Another carbon filter on a 6 in inline fan handles air exchange and removes room smells.
What kind/s of light are you running?
Szhlux 840w and a 620w. 620 in veg room, 820 in flower room.
