No, low humidity does not significantly affect Cannabis plants. As dry as 20-30% is fine, it is likely that even drier conditions wont cause problems. In bloom the drier the better. The only thing is your media is going to dry out quicker. Cannabis plants get water from the soil/media they are growing in.For veg, you want 65% pr higher. IN bloom 40% is awesome. Running consistently low humidity levels; Do! Effect your plants.
Are you sure your humidity meter is correct? It sounds odd, that your RH would be sky rocketing one year, and too dry the next. Is this seasonal, or from a different time of year (season), for example? It is always humid where I live; So I am not sure this would change that drastically in your area, but just a thought.
Are the buckets of water under the light? The sun is a keystone in the water cycle.
Fuck what some book says when practical experience has demonstrated the objective. Seeds sprout and seedlings grow just about as well at 25% RH as they do at 60% RH. Despite what some old pot growing book might have to say.Wow! You must have read different grow books, than I did years ago. If that is what you want to teach, I cannot fight you here. However; I am going to continue to teach agriculturally proven Grow facts. Peace
Yea its two different seasons , I'm in new York so my last grow to harvest it was summer , real hot n humid n now its winter , I have my rooms temp at 70°f n if I try heating up the closet with an aletric heater it just makes the humidity fly down ..... I put three buckets of water in there n its almost to 45 rh , I just don't know how the different temp n humidity will effect my grow , I guess its a learning thing when u live in a state where one day its 64°f out n the next day its 10°f ..... This will be my first grow during the winter season but I imagine as long as I can control my closets temp n rh I'll b OK...... I have one seedling of sour diesel n it looks amazing for only 14 days old... Just six that out of six seeds only one germinated , I scratched my head since iv never not been able to germinate a seedAre you sure your humidity meter is correct? It sounds odd, that your RH would be sky rocketing one year, and too dry the next. Is this seasonal, or from a different time of year (season), for example? It is always humid where I live; So I am not sure this would change that drastically in your area, but just a thought.
Sounds like you are getting a handle on the whole idea. I thought that you may be describing 2 different seasons. Good Luck.
Seems really low to me, I'm no expert but that seems like its really really low, I like 40% maybe 5% lower during flower... N veg I like it at 60% , its winter were I am so my temp is only at 70degrees but it seems to be very healthy ...... And u gotta watch when u harvest with being that low, don't wanna dry to quick , dry slow as u can, I like to hang the whole plant with the fan leaves for at least two three days before I manicure and continue to dry , good luck brother ,happy growin
I thought having your RH too high increased the risk of getting many forms of fungus? I know in flower, you don't want the same RH you want in veg...if I'm correct, you want it to be lower. And I too feels lower 70's is a good range for flower, but it's all really in respect to what the plant's temps were in veg. For example, my veg average temp was about 76F. So now, in flower, I try to keep it around 72F. If it were 72F in veg, I'd probably try to keep it at 70F in flower. It's just what works the best for me in my situation though, I too am taking on the challenges that come with the winter. Because I am in DWC, I would muuuuch rather deal with winter temps than summer temps!