Quote Originally Posted by phytokind
Cannabis likes moist soil and low humidity. Seedlings obviously like a higher humidity, but they don't remain seedlings for very long so I wouldn't try to increase the humidity, just keep the soil nice and moist.
I agree a hot dry climate is optimal.

If for some reason you DO want to bring up the RH, spraying is a great way to feed them and make them happy as well. If you are worried about being too rough, get household sprayers with a fine mist setting. For seedlings, clones and young plants they are quite good.
mendokid Reviewed by mendokid on . Humidity Question Hi... I have a small grow going and i'm monitoring the relative humidity. I am sitting at around 45-46% RH with three seedlings under 24hr flouro (only a few days old). Everything I have read says i'm about 10-15% off of the optimum level. I am not running fans on the seedlings but do have a gentle fan that I can use to circulate air without disturbing/shaking the plants. What can I do to bump up the RH? Is it important that I do so? My idea has been that I could leave a small Rating: 5