I looked under the leaf to make sure I did not have any unwanted pests. If you think you might be over watering your plants, let your soil dry to the point where the top couple inches is dry. I have been dealing with a gnat problem that went from 0-50 in what seems like over night. If your plant looks healthy, but a few leaves are curling sideways, I would start by flushing your plant. Could this leaf curling be caused from a gnat infestation? The fan wasn’t on high but it was directly blowing into the canopies of these plants. Twisting leaves, especially sharp, should be cause for concern..On the one hand, this may be a signal of the beginning of a dormant period, however, if for some unknown reason, the leaves suddenly twisted together with the flowers, and at the same time the flower released many new young leaves… Leaves Curling Sideways Possibilities Does your plant look healthy? From my research this could be caused from root stress. I’m using New Millennium nutes. an over nute looks like a bad overwater all the leaves droop down the only difference is the leaves get burned, depending on the strength of solution or organics. I’m unsure if this will harm them. Typically, thrips prefer to feed on plant tissue from newly emerging leaves. When this happens, the cells in the leaves start to die, causing them to become dehydrated, turn brown, and eventually curl from damage. I’m in week 3-4 of veg and they have slowed down considerably in the last week and a half. One of the reasons for the first group is wrong watering mode, it must be adjusted, also pay attention to the quality of the water itself.It should not be a lot of potassium. Over or under-watering can also cause citrus tree leaf curl. They’re not too wet I mean just gave em open sesame yesterday. If you are interested in learning more about growing cannabis, please check out my blog. Recently I discovered a fan leaf with leaves curling sideways. I did as you said. I had a fan directly pointed at them over the weekend because my house AC died and had to wait two days for the repair. I’m not over fertilizing. Pics. Inconsistent watering is one of the most common reasons for Fittonia leaves curling. Curling leaves are often caused by the hydrangea not receiving enough moisture on a regular basis. I always try and shoot for that and overshoot it by a point or two every time and instead of adding ph down and the fear of going too low and then having to add ph up again I just role with it since its within the recommended range. Here is what I found. Clawing is a sign or signal that the cannabis plant is sick and needs to be healed. Also the new growth is coming in twisted and distorted. Doesnt even look like weed at all. I thanked him, but decided it was best to look into this issue a little further. I treated with nematodes about a week ago with no positive result on the fly population and am currently waiting on delivery of a second treatment. Citrus leaves can curl when disease is present; temperatures are either too cold or too hot; or there is an insect infestation such as scale, mealy bug, mites or aphids. To be more clear about the watering I was watering everyday or every other day for the first 2 1/2 weeks at that point I noticed some minor curling on one fan leaf on one plant then the flies started and then I started tapering back in the watering. Broad Mites. Any form of downwards curling usually indicates overwatering or overfeeding. If your PH is off the mark, this definitely can be the reason why your plants leaves are curling sideways. For soil, the PH should be between 6 and 7.