(Causes) As the diverse symptoms of the disease show, the causes can be quite varied. They are in a large black rubbish bin, with drainage holes, good food in the soil - vege potting mix and sheep pellets. In your case they are curling because you are over watering the plant. Let those older leaves relax and hang out. 3.2m members in the gardening community. So if you notice the normally beautiful flowers suffering from curling leaves, it is time to act. They feed on the new, center growth of plants, so look there for stunting and damage. Two outer leaves have totally dried up, with a third one being reabsorbed. The plants are growing well but thick tough leaves and good curl. This may also be one reason why leaves are curling, so to fix the problem, you may need to feed your plant with much-needed nutrients or fertilizer to heal them from any kind of sickness. There are numerous reasons why you might find curly cannabis leaves in your grow-op. Marigold flower partially wilting and leaves are curling. Curling cannabis leaves are caused by many different issues that your marijuana plants could be experiencing. So finally I cut all its leaves … The leaves are curling … If the serrated leaf edge starts to curl or fold upwards, then this is a sign that the growing conditions are not ideal. This guide will explain why this phenomenon occurs, and what you can do to prevent it from ruining your final product. My aloe plant's leaves have gone from plump and fat (when acquired last Sept) to ultra thin and curled into themselves lengthwise (by end of Feb/March). Maybe you should try gentle fertilizer. In addition to wilting it says. There are two possible causes of curling leaves in plumeria, and both require quick action to avoid further damage. Tap water contains salts, chlorine, minerals, and fluoride – all of which can build up in the soil of your plant causing the tips of the leaves to burn, turn brown, and curl up. Indoor Mint Leaves With Black/Brown Spots. If the plant is droopy as well, sounds like it could be dry soil as well. Anonymous. the strain is heavy duty fruity, a juicy fruit is doing it too but i figured id take pics of the worst one flowering for 4 weeks on thursday Rootbound. thank you advance for any help. They cause damage by chewing small holes through the leaves. Well depends, sometimes the leaves just curl and there is nothing wrong, otherwise it could be dry soil. Hi again, Rugbyhukr. Why Are My Tomato Plant Leaves Curling? But I did not get any result. I knew mint leaves need regular fertilizer and watering because it is a rapid grower. 8 years ago. So I used mustard cakes fortnightly to that container and water regularly to keep it moist. … is in a container that confines its wandering roots. I used a good-quality compost and filtered water. Aside from the reasons that were already mentioned, including overwatering, over-fertilizing, heat stress as well as low temperatures, it could also be due to nitrogen toxicity.. Nitrogen toxicity basically is when plants get too much nitrogen. And @Baja_Costero regarding the root disturbance question. The serrated leaf edges are curling upwards on some of the leaves. Mint plants suffering from flea beetles are easily spotted, as the beetles will jump from the plant's leaves when disturbed. The leaves appear to have a whitish or greyish surface and may curl. The key reasons why Pilea leaves curl inwards. if they are winding around the rootball, it is time to divide the plant otherwise it will choke itself. Powdery Mildew occurs on the top of the leaves in humid weather conditions. How To Fix Curling Marijuana Leaves One of the most common problems that first-time growers face is that they notice their marijuana leaves curling up at the edges. If the curling continues after you’ve regulated a watering schedule, another common reason your Prayer Plant’s leaves are curling could be due to your tap water. Final Thoughts on Curling Leaves: Curling weed leaves can be a really frustrating thing to deal with because there are so many different causes. The mites that invade African violets are too small to see. Not sure if that makes sense. Water early so the leaves have the whole day to dry out. These aged petioles on the bottom of the Pilea peperomioides might droop trying to lift the weight of larger leaves.. Easy Fix: Do nothing.