Does High RH cause leaf curl? I have not seen any pics showing what high RH does to a flowering plant, other than mold. I'm talking leaf curl like the following pic that is NOT mine. I forgot to write down who this belongs to. sorry
Yes it causes leaf curl. the leaves breath from stomatas on the underside of the leaf. if the RH is too high the plant begins to suffocate and curls in a attempt to get away from the extra moisture.
