You should post your zone to let others in your area to help you.... (Really does make a big difference!!!!) I will take a poke at it. Mine are in a basement & when I water & when they stay wet to long they would do the same thing.... If your growing in a cool to cold room then don't even think about watering... the only time I water mine is when I mist my plants with water to control spider mites.... hope it helps....
